Steve's awkward Aunt Oona visits and chaos erupts when she holds a singing contest.

Steve, Eddie and Waldo Faldo dress up as nuns and search for Myra in a convent, where she went after Steve ended their relationship.

Laura wants to buy a car, but car salesman Honest Bob exploits her lack of car-buying experience; Steve is close to ruining Eddie's love life.

Steve and Laura reject the affectionate advances of their respective dates at the drive-in.

Dale and Meemaw work out relationship issues while playing Dungeons and Dragons with Sheldon and Missy; Mary and George take a trip with coach Wilkins and his wife; Georgie's girlfriend thinks she's pregnant.

College orientation does not go as Sheldon planned; Mary is invited to a party when she's mistaken for a university student; George Sr. helps Pastor Jeff set up a children's nursery.

Sheldon's first day of college is derailed by his new philosophy teacher, professor Ericson; Mary and Brenda live vicariously through Missy's first day of middle school.

Meemaw takes matters into her own hands when Sheldon's philosophy teacher sends him into a tailspin; George Sr. learns Georgie has been cutting class.

Sheldon and George Sr. have dinner with President Hagemeyer and a university benefactor; Georgie gives Missy some brotherly advice when Mary won't let her go to the school dance; Dale and June convince Meemaw to attend their son's wedding.

Sheldon campaigns to become Dr. Linkletter's lab assistant; Georgie enlists the help of Mr. Lundy, the drama teacher, for a business venture.

Rachel and Joey might become more than friends; Chandler sets a Ms. Pac-Man record; Ross breaks land-speed records.

Joey might declare his love for Rachel, or Phoebe; Rachel breaks a pact with Ross; Chandler becomes mister bubble bath.

Joey realizes his intense feelings for Rachel are excluding Ross from the joys of impending fatherhood.

Monica prepares a memorable St. Valentine's Day for Chandler with sexy lingerie and X-rated entertainment.

Joey confesses his true feelings for Rachel; Phoebe introduces Monica to her new boyfriend (Harry Van Gorkum).

Rachel devises a lie about her unborn child that she hopes will break the silence between her and Joey; Phoebe reads tea leaves and predicts she will soon encounter the man of her dreams.

Phoebe brings her annoyingly upbeat boyfriend to the 35th anniversary of Monica and Ross' parents, who urge Ross and pregnant Rachel to pretend to be married.

When Soap Opera Digest requests an interview, Joey enlists his friends to make sure he does not say anything that could cost him his role.

During her baby shower, Rachel realizes she is unprepared to be a mother and accepts her mother's (Marlo Thomas) offer to move in to help with the child.

A food critic blasts Monica's cooking in a newspaper review; a cute saleswoman riles Rachel when she flirts with Ross; Phoebe coaches Chandler for a job interview.

Monica and Phoebe make a bet after Rachel passes her delivery date; Chandler falls asleep at the premiere screening of Joey's new film.

Rachel goes into labor, enduring endless pain while anxious Ross hovers nearby and her waiting friends wreak havoc in the hospital.

Sheldon gives spontaneity a try, which causes unexpected friction for Penny, Bernadette and Amy; Raj asks Howard for help with preparation for a date with Emily.

Professor Proton (Bob Newhart) helps Sheldon deal with grief; Leonard gets into a competition with Penny; Bernadette and Amy prepare a "Star Wars Day" gift for the guys.

A bad day compels Penny to re-evaluate her choices -- including Leonard; Bernadette and Howard must care for Mrs. Wolowitz; Sheldon gives Raj advice on relationships.

Faced with an uncertain future, Sheldon considers a major change; Emily and Raj decide to take things to the next level.

Leonard and Amy make an unexpected trip to Arizona to fetch Sheldon; Penny interviews for a job at Bernadette's company; Stuart's relationship with Mrs. Wolowitz disturbs Howard.

When Sheldon must teach a class, Howard decides to take it; Amy takes advantage of the tension between Penny and Bernadette.

Wolowitz feels nervous when he is asked to throw the first pitch at a Los Angeles Angels game; Penny and Leonard want to prove Sheldon wrong after he says he and Amy are the better couple.

Raj's honesty comes back to haunt him when his new girlfriend is unfriendly to Penny; the guys think about becoming part owners in Stuart's store.

During their weekend in Las Vegas, Bernadette and Amy accuse Penny of being a buzz kill; the guys try to invent the next big thing.

Raj and Sheldon try to simulate a dark-matter research expedition; after a fight about money, Penny and Leonard turn to Bernadette and Wolowitz for advice.

Anthony Davis pranks former NFL tight end Marcedes Lewis when a routine valet drop-off turns into joyrides and errands; NBA coach Jason Kidd sends NBA superstar Cooper Flagg into a rookie symposium that devolves into awkwardness and a marital meltdown.

NHL forward Wyatt Johnston and Howie Mandel set up NHL defenseman Lian Bichsel at a restaurant where a romantic proposal meltdown turns him into the unwitting villain.

Sheldon feels pressured to participate in romantic traditions when the gang re-creates a high-school prom on the roof.

Leonard has minor surgery on his nose, causing Sheldon to overreact; Bernadette and Howard work on their marriage.

After returning from his romantic quest, Andy battles with Nellie for the manager's chair; Kelly has a difficult time choosing between Ryan and a perfect man (Sendhil Ramamurthy).

Andy crashes a fundraiser and ends up adopting 12 dogs; Dwight learns that an auction winner loses money; Nellie learns how to eat a taco.

Andy tries to jumpstart his comeback; after Robert drunkenly shuts down a local branch, Jim and Dwight join forces in hope of outsmarting a salesman.

A former boss helps Andy go undercover and stage a coup; a new opportunity arises for Robert.

Two new, young employees throw Dwight and Jim off balance; Andy returns from leadership training with a desire for revenge.

A toast at Roy's wedding leads to Pam and Jim searching their relationships for buried secrets; Dwight reacts to Nellie's mandatory charity initiative.

As Andy flaunts a discovery he made about his ancestry, Darryl struggles in his new role; Dwight teaches a language to Erin, who wants to impress her boyfriend's educated family; Jim reveals a secret.

When Jim convinces Dwight the building is unsafe, Dwight rents a bus to use as his office; Nellie asks for Andy's help; Jim uses pie to cheer Pam.

Andy invites his old a cappella group to perform for Halloween, which leads to a confrontation with his frenemy; Dwight tries to track down a madman in the office; Jim and Pam fight over his new job.

Andy must step up when his dad loses all his family's money; when Dwight is a guest on a radio show, his co-workers call in to torture him; Kevin learns a secret about Oscar.

The women of the office try to teach Dwight how to interact with female clients; Angela suspects the senator of cheating; Toby convinces some of the guys to grow mustaches.

When Angela finds out about her husband's affair, she goes to Dwight for help; Stanley and Phyllis take advantage of Jim when he needs a favor; Pete distracts Pam as she begins painting her mural.

Dwight picks up the slack when the party planning committee fails to plan a Christmas party; Darryl worries Jim has forgotten the promise he made; Pete teaches Erin about "Die Hard."

Steve tries to put some holiday spirit into the Winslow family.

Steve is the center of attention at a mall when Myra begins to flirt with him.

Eddie decides to skip college in favor of a career in the entertainment business.

Dr. Linkletter pushes Sheldon to make friends with his fellow students at college; Georgie gets a pager.

Sheldon, Dr. Linkletter and Meemaw team up on a science experiment; Mary is jealous that Pastor Jeff and Brenda are spending time together; Georgie has a new side hustle.

Meemaw is forced to take the church shuttle while her car is in the shop.

When the IRS accuses Sheldon of making a mistake, he'll stop at nothing to prove them wrong; Dale is forced to get a colonoscopy and tries to convince Meemaw to join him.

Sheldon is caught in a moral dilemma when offered a bootleg copy of a computer game he can't afford; Mary and Meemaw take Brenda out for girls' night; Missy asks Georgie to take her and Marcus on a secret date.

Sheldon finds himself at odds with Paige when she considers enrolling at East Texas Tech.; Mary seeks June's advice when looking for a change.

After Rachel gives birth to her baby, she must confront relationship issues around her.

Joey finds himself engaged to Rachel soon after she delivers her baby girl, while Phoebe assumes Ross is the one who proposed; Joey sneaks a peek as Rachel tries unsuccessfully to nurse; Monica and Chandler retire to a supply closet for privacy.

Joey seeks forgiveness from Ross, while Rachel tries to quell Emma's incessant crying.

Emma's pediatrician drops her as a patient because of Rachel's constant calls.

Monica fears Chandler has a sexual fetish involving sharks; Phoebe fears losing her boyfriend.

While Phoebe and Joey wait at a fancy restaurant to celebrate Phoebe's birthday, Rachel is afraid to leave her infant with a babysitter; Monica and Chandler also fail to arrive on time after they fight over Chandler's urge to resume smoking.

Ross mocks Rachel's new male nanny (Freddie Prinze Jr.); Chandler becomes upset when Monica says that somebody from her job is the funniest guy she's ever met.

Chandler and Joey find a videotape while checking out Richard's apartment; Ross sings Emma an off-color lullaby.

Rachel has a bone to pick with her self-centered sister (Christina Applegate) on Thanksgiving; Monica protects her good wedding china; Joey forgets to join his TV cast mates for the Thanksgiving parade.

Rachel impulsively gives her telephone number to a handsome guy but worries he will call when Ross is there.

Monica fears the worst when she learns Chandler will be spending Christmas in Tulsa working on a deadline with a beautiful co-worker (Selma Blair).

When Rachel visits her workplace to show off baby Emma, she is surprised to find a handsome temporary worker, Gavin, who has been doing her job while she was on maternity leave; their immediate war of wills prompts Rachel to make a rash decision that she could regret; Joey arranges for Phoebe to get a job as an extra on his daytime drama series, but she wreaks havoc on the set. And, having quit his job, Chandler must get another, fast, because Monica desperately wants a family.

Sheldon says goodbye to Fun With Flags; Howard, Leonard and Raj look through their dead professor's research; Bernadette learns her co-workers' true feelings.

Leonard and Wolowitz clash over a work emergency; Amy throws a Victorian Christmas party which Sheldon resents.

When the guys agree to do something the girls like, Sheldon and Leonard end up having a confrontation.

Sheldon asks his friends to challenge him in hope of achieving a scientific breakthrough; Wolowitz invents a game about Raj.

Sheldon and Leonard must defend themselves from an online bully's criticism after they co-publish a paper; Bernadette, Penny and Amy confront embarrassing moments during a girls night.

Major League Baseball pregame analysis.

From Truist Park in Atlanta.

Major League Baseball postgame interviews, analysis and highlights.

Pam accidentally brings lice into the office but lets Meredith take the blame; Jim spends a great day in Philadelphia with a potential business associate; Nellie, Phyllis and Kevin interfere with Darryl's love life.

Everyone abuses the office's new espresso machine; Dwight takes Clark on a sales call; Darryl goes for an interview at Jim's company; Pam surprises Jim with a visit.

Dwight tries to stop Darryl from leaving; Jim misses Cece's first recital because of work, upsetting Pam; Nellie exposes Erin and Pete.

David Wallace asks Dwight to find a new part-time salesman who will fill in for Jim; Pam looks for a new desk mate; Erin searches for her birth parents.

Nellie and Dwight spring into action when Pam needs help finding the vandal who defaced her mural; Darryl has a hard time dealing with Jim's habits.

The staff pairs off into pretend couples so they can take advantage of a Valentine's Day discount at a minimall; Erin claims she will break up with Andy when he returns, but Pete has his doubts.

During an interview for a job in Philadelphia, a manager gives Pam déjà-vu; Dwight asks Angela to join him on a mission; Andy returns from his trip.

During an interview for a job in Philadelphia, a manager gives Pam déjà vu; Dwight asks Angela to join him on a mission; Andy returns from his trip.

Dwight takes a trip home for a Schrute funeral; Todd Packer tries to make up for a lifetime of bad behavior.

The office employees are excited when TV commercials for the documentary begin airing; Angela is jealous when Dwight starts dating a farmer; Jim meets with professional baseball player Ryan Howard.

The elevator goes out at the office, forcing everyone to use the stairs; Dwight forces Stanley to make a sales call; Pam and Jim talk to Nellie and Toby about relationship problems; Angela supports her man.

Dwight and Angela compete in a paper airplane contest; Andy prepares for an acting role; Jim and Pam use new skills.

Andy decides to quit his job and pursue his dream; Dwight has his best day ever at work; Jim comes back to Scranton to spend more time with Pam.

Andy decides to quit his job and pursue his dream; Dwight has his best day ever at work; Jim comes back to Scranton to spend more time with Pam.

Claire and Phil worry when they learn Luke has befriended their cantankerous old neighbor; Jay tries to avoid attending a symphony concert with Gloria and Manny; Haley baby-sits Lily.

Cameron is overzealous in his planning of the spring musical performance at Luke and Manny's school; Jay's brother visits; Phil convinces the family to be in his new ad.

Mitchell and Cameron try to choose who would best take care of Lily should anything happen to them.

The Coopers discuss the possibilities of black holes and alternate universes when Dr. Sturgis comes over for dinner.

Missy's first disappointment in love triggers a series of events that leads the Cooper family to the edge of an abyss.

Sheldon and Missy both run away from home together; Mary gets some upsetting news about her husband, George.

Sheldon encourages Missy to question the Bible; Meemaw is determined to catch George Sr. in a lie; Mary helps Pastor Jeff search for a youth pastor.

Sheldon tries to convince Dr. Sturgis to return to the university; Georgie upsets the family when he makes a life-changing decision.

Meemaw opens a secret gambling room; Sheldon, Missy and Georgie adapt to new living arrangements.

Monica invites Rachel's workplace rival (Dermot Mulroney) to her birthday party; Joey flirts with Emma's new nanny (Melissa George); Phoebe and Mike (Paul Rudd) take care of a litter of rats.

Monica exults in the applause she receives on karaoke night, unaware that the cheering audience can see through her blouse.

Joey and Phoebe conspire to send Rachel and Ross on disastrous blind dates; the ovulating Monica wants to get intimate with Chandler.

Joey stumbles upon a way to impress a famous actor (Jeff Goldblum) during an audition; Ross learns the identity of a long-ago mugger; Chandler accepts an internship at a shoe company.

Both Monica and Chandler secretly approach Joey for a loan; Phoebe invites Mike (Paul Rudd) to move in with her; Rachel baby-proofs the apartment.

Ross and Chandler trade barbed insults on their alma mater's Website; Phoebe's resolve not to call ex-boyfriend Mike (Paul Rudd) weakens.

The gang buys scads of lottery tickets for the multimillion-dollar jackpot; Rachel suspects baby Emma is on the verge of saying her first word.

Rachel's visit to a soap opera set inspires her to dream about Joey; Chandler takes Ross on a weekend getaway after Monica cannot take time off from work.

Ross invites an attractive paleontologist (Aisha Tyler) to a rooftop "Days of Our Lives" party being thrown by Joey.

Monica and Chandler run into an old acquaintance when they secretly go to a fertility clinic; Ross helps Joey woo the same professor (Aisha Tyler) he wants to date.

Monica and Chandler interview unsuspecting candidates, hoping to find the right man to father their baby.

The gang heads to Barbados for a paleontology convention where Ross is the keynote speaker; David (Hank Azaria) prepares to propose to Phoebe, but ex-boyfriend Mike (Paul Rudd) is not yet out of the picture.

While the gang waits for the reopening of Stuart's comic book store Wolowitz gets some shocking news; Penny has trouble taking her own advice; Leonard and Raj think they spot Nathan Fillion at a restaurant.

Penny and Sheldon design an experiment -- as a joke -- to make participants fall in love; Howard and Bernadette get into trouble at the airport.

Amy finds out that Sheldon applied for a one-way mission to colonize Mars; a trip to the pet store leads to a fight; Leonard has a surprise for Penny; Raj is busted while snooping in Emily's apartment.

A magazine article only credits Sheldon in an article about a paper he co-wrote with Leonard; a blackout at Mrs. Wolowitz's results in a final dinner in her honor.

When Sheldon and Leonard are asked to speak at UC Berkeley, they take a detour in hope of meeting an idol; Raj and Amy try to settle a dispute between Howard and Bernadette with a game of ping pong.

Sheldon and Amy build a blanket fort -- and come to a crossroads in their relationship; Wolowitz meets a half-brother he didn't know he had; Leonard and Penny have an argument during an appearance on Wil Wheaton's podcast.

The guys fight over what message Raj should write for NASA in case of alien contact; Penny has to decide between auditioning for a movie or keeping her pharmaceutical sales job.

Wolowitz questions his engineering skills after he and Sheldon can't get a toy drone to fly; a canceled flight puts Leonard's plans in jeopardy; Raj sets his parents against one another after he's cut off financially.

All Elite Wrestling continues to inject new spirit, freshness and energy into mainstream wrestling featuring a world-class roster of diverse male and female wrestlers.

Andy decides to quit his job and pursue his dream; Dwight has his best day ever at work; Jim comes back to Scranton to spend more time with Pam.

Andy decides to quit his job and pursue his dream; Dwight has his best day ever at work; Jim comes back to Scranton to spend more time with Pam.

As everyone prepares for the premiere of the documentary, Jim convinces Dwight that he needs to hire an assistant to the assistant to the regional manager; after being turned away at daycare, Angela brings her baby to work.

As everyone prepares for the premiere of the documentary, Jim convinces Dwight that he needs to hire an assistant to the assistant to the regional manager; after being turned away at daycare, Angela brings her baby to work.

Past and present Dunder Mifflin employees gather for a wedding and a final round of interviews.

Past and present Dunder Mifflin employees gather for a wedding and a final round of interviews.

When a documentary crew comes to Dunder Mifflin to learn about modern management, manager Michael Scott tries to paint a happy picture of his domain, but his jokes keep falling flat.

Michael's offensive behavior prompts the company to sponsor a seminar on racial tolerance and diversity; Jim has trouble securing his biggest yearly commission.

When forced to pick a cheaper health care plan, Michael, rather than lose popularity points with his staff, shirks the responsibility to Dwight.

Michael tries to raise employee morale with a birthday party amid rumors of downsizing.

Michael and gang play the warehouse workers in a not-so-friendly game of basketball; Michael bets that the losers will have to work on Saturday.

Dwight, Michael and Jim all vie for the attention of an attractive woman who comes to the office to sell purses.

The Dunder Mifflin employees suffer through the annual office awards ceremony, The Dundies, hosted by Michael at their local watering hole, a Chili's restaurant.

Corporate office requires the staff go through sexual harassment training, but Michael worries that the new policy will make the office less fun for everyone.

While Michael and Dwight are away from the office, Jim and Pam organize an office Olympics where employees compete in ridiculous games.

Gloria and Claire plan a Mother's Day hike with the kids; things becomes awkward when Phil catches Jay in a moment of weakness.

Phil and Claire shock the kids by switching parenting roles for a day; Jay gives advice to an entrepreneur about his dog-training business; Cameron has the flu, leaving Mitchell to decide what to do with their Lady Gaga tickets.

As the family prepares for Alex's middle-school graduation, Jay tries to hide a cosmetic-procedure mishap, Cameron is upset about Mitchell laughing at his expense, and Phil antagonizes Claire.

Sheldon and Dr. Linkletter struggle to solve an equation; Georgie has a solution for Meemaw's business woes; George Sr. gives advice on Missy's love life.

Missy asks some uncomfortable questions at church; Meemaw and Georgie go into business together.

Sheldon takes his first engineering class with Professor Boucher; Meemaw and Dale help take care of his ex-wife, June.

Sheldon battles President Hagemeyer's mysterious boss over the university's science requirements; Mary discovers that Georgie is working at Meemaw's illegal gambling room.

Sheldon gets the science yips and has to learn how to not think; George Sr. plays handyman at Brenda Sparks' house.

Sheldon gets a dorm room all to himself; Meemaw gains an unwanted business partner.

The gang heads to Barbados for a paleontology convention where Ross is the keynote speaker; David (Hank Azaria) prepares to propose to Phoebe, but ex-boyfriend Mike (Paul Rudd) is not yet out of the picture.

In Barbados, Monica, Chandler and Phoebe eavesdrop on their friends' passionate encounters; Monica styles her hair to look like a blowfish; Phoebe and Mike rekindle their romance.

Ross drinks too much alcohol at dinner with Rachel, Joey and Charlie; Frank Jr. (Giovanni Ribisi) cannot cope with his precocious triplets.

Rachel and Joey nervously anticipate their first real date; Monica and Phoebe try to avoid an obnoxious friend with a fake British accent; Ross emerges from a tanning booth with a two-toned appearance.

Rachel gets Monica and Chandler to delay their trip to Vermont for Emma's first birthday bash.

Rachel feels like her younger sister, Amy, is finally on the verge of making a major change in her attitude; in order to help Amy become a more responsible person, Rachel overrides Ross' strong protests and allows Amy to baby-sit Emma.

When Ross interviews with Charlie's ex-boyfriend (Greg Kinnear) for a prized grant, the doctor makes a shocking stipulation; Chandler lies about watching Joey's bizarre audition tape.

Monica and Chandler fuss over their apartment as they expect a visit from the adoption worker, Laura; Phoebe and Mike opt for a small wedding and donate the extra money to a children's charity.

Monica prepares a Thanksgiving feast for the gang, then becomes enraged when everyone shows up late; Phoebe convinces Rachel to enter Emma in a baby beauty contest.

A prospective birth mother (Anna Faris) labors under a misconception about Monica and Chandler's respective occupations.

Rachel and Phoebe spot Chandler getting into a car with a mystery blonde; the friends reminisce about memorable moments.

Joey appears as a celebrity contestant on "$100,000 Pyramid"; Monica and Rachel hire an ungainly stripper for Phoebe's bachelorette party.

When Sheldon's and Leonard's mothers finally meet, personalities collide; Howard decides to do his share of the chores -- with a little help from his friends.

While facing dramatic changes in his relationship with Amy, Sheldon pushes Penny and Leonard to choose a wedding date.

Sheldon struggles to understand what is going on with Amy; Penny must decide if she can get past Leonard's bad behavior.

Leonard tries to ease Penny's mind; Sheldon plans a special episode of "Fun With Flags"; Bernadette feels bad about keeping a secret.

A flat tire during Leonard's bachelor party weekend in Mexico tests the guys' skills; Penny is compelled to tell her family that she and Leonard eloped.

An impending change to his living arrangements inspires Sheldon to revert to 2003, before he met Penny and Leonard; Raj and Howard form a band.

Barry Kripke expresses interest in Amy while leading a fencing lesson for the guys; when Stuart tries to attract female customers to the store, Penny, Amy and Bernadette help out.

The latest hockey action from across the NHL.

Sheldon struggles to keep his emotions in check when he is interviewed for a documentary about Spock; Penny and Leonard make a surprising discovery; Wolowitz and Bernadette get into a disagreement about remodeling his childhood home.

Sheldon, Wolowitz and Koothrappali post an ad online to find a new girlfriend for Sheldon; Penny and Bernadette decide to spy when Amy is secretive about who she is dating.

Amy and Sheldon spend Thanksgiving at the aquarium -- as friends; Wolowitz volunteers at the soup kitchen with Raj, Emily and Bernadette; Penny realizes that Leonard knows her better than she thought.

Sheldon has a song stuck in his head; despite their awkward date, Amy asks Dave over for dinner; Koothrappali and Wolowitz are obsessed with a fan of their band.

After dating for more than five years, Amy and Sheldon spend the night together for the first time; Leonard, Wolowitz, and Koothrappali must decide what to do with an extra movie ticket.

A small fire in the kitchen forces the staff to wait in the parking lot; Jim suggests a game of Desert Island; Michael tries to impress Ryan.

Halloween is not much fun for Michael when he learns he must fire someone; Jim and Pam put Dwight's CV on the internet.

When Dwight karate-chops Michael in the stomach at work, a lunchtime rematch is quickly organised; things become awkward between Pam and Jim.

Michael and Jan try to land a new client by taking him out to Chili's; back in the office, Jim finds a script written by Michael and the workers cannot resist acting it out.

Everyone is on edge during performance review, including Michael, who steals the employee suggestion box to get ideas he can present to his boss.

When Michael begins monitoring their e-mails, he manages to upset all the employees.

After Michael suggests a game of "Yankee Swap" with the Secret Santa gifts, everyone fights over Michael's gift to Ryan, bringing morale to an all-time low.

When Michael takes the Mifflin crew on a motivational harbor cruise, things get out of hand and Michael ends up in the brig.

After he has an accident while using a grill, injured Michael demands attention from the entire Dunder Mifflin office.

Because Jim fears Michael will tell the others he likes Pam, he pretends to be Michael's best friend.

When someone stains the carpet in Michael's office, he begins to question his popularity among his staff.

When Jan conducts a seminar for the female employees, Michael takes the guys to the warehouse for some male bonding.

Michael visits corporate headquarters in New York on Valentine's Day.

Stan tries to make his new atheist friend (Jay Thomas) believe that God exists; Roger convinces Steve that he has been accepted to Hogwarts.

Francine's adoptive parents refuse to assimilate to Stan's ways when they stop by for an unannounced visit; Steve tries to impress the class hottie.

The family scrambles to plan a big celebration for Jay's birthday; Phil runs into his college nemesis; Cameron gets into hot water at a bakery.

The family takes a vacation on a ranch in Jackson Hole, Wyo.; Jay faces off with a cowboy.

Sheldon acts as Mary's spy during a youth lock-in at church; Georgie is attracted to an older woman.

Sheldon attends his first comic book convention; Mary tries selling makeup.

Sheldon makes friends with his dorm neighbors; George Sr. learns his job is in jeopardy.

Sheldon butts heads with Dr. Lee, a new scientist in the lab; Mary is given a lotto ticket.

Sheldon joins Dr. Linkletter and Dr. Sturgis on a science road trip; Georgie continues to lie about his age.

Meemaw's gambling room becomes a success; Sheldon dips his toe in the stock market; Missy starts a business.

A blizzard causes Phoebe and Mike's wedding to spiral out of control; uptight Monica steps in as her friend's wedding planner, then drives everyone crazy.

Monica and Chandler show Erica the tourist sights; they learn their baby's biological father might be an unsavory character; Joey begs Phoebe to teach him how to speak French before an audition.

Rachel goes to a job interview at a restaurant and winds up sitting next to her current boss; Joey feels abandoned because Monica and Chandler are leaving.

Ross tries to win back Rachel's job with her former fashion employer; Phoebe tries to keep Joey from learning about his agent's death; Monica and Chandler make a horrifying discovery.

One of the guys becomes offended when Rachel does not give him the same goodbye she gives the others.

The six friends prepare to say goodbye and embark on the next chapters of their lives; momentous events and last-minute surprises.

The six friends prepare to say goodbye and embark on the next chapters of their lives; momentous events and last-minute surprises.

Monica's high-school friend visits after leaving her fiancé at the altar.

Monica begins to feel the heat when she prepares dinner for her parents (Elliott Gould, Christina Pickles).

Monica finds it difficult to break up with her latest boyfriend (Geoffrey Lower), whom everyone likes; Chandler starts smoking again; Phoebe receives a large sum of money.

While the men attend a hockey game and end up at a hospital, the women spy on President Clinton's top aide, George Stephanopoulos, who lives across the street.

Chandler and Phoebe plan to dump dates on the same night at the same coffee house.

The gang celebrates news of Bernadette's pregnancy by singing karaoke; Wolowitz's reaction to the pregnancy announcement worries Bernadette; Wolowitz believes he needs to make more money to support his growing family.

For the first time in nine years, the gang celebrates Sheldon's birthday -- surprising him with a special guest.

Leonard, Sheldon and Wolowitz file for a patent on their new invention; Penny, Amy and Bernadette give dating advice to Koothrappali after his breakup with Emily.

Sheldon makes a surprise revelation when Amy buys him a new laptop; Leonard and Wolowitz get sold out by Koothrappali after lying to their wives to attend a movie screening.

Sheldon shares a secret about Leonard when the two go on a weekend trip with Penny and Amy; Koothrappali goes all out with pregnancy gifts.

During a group get-together, a minor argument between Sheldon and Leonard turns into a heated debate, leaving the rest of the gang to choose sides.

The gang runs into Penny's old boyfriend while out at a wine bar; Bernadette spends an evening with Sheldon; Koothrappali's introduction of his new girlfriend doesn't go as planned.

Sheldon wants to go to a movie screening, so he pays Stuart to spend the day with Amy; Penny has a difficult time connecting with Leonard's visiting mother.

Leonard's recently divorced parents and Sheldon's devoutly religious mother visit; when they are contacted about their guidance system, Wolowitz and Koothrappali think the government is after them.

The group struggles through an awkward morning after Sheldon's mother and Leonard's father spend an evening together; Penny's family arrives.

Wolowitz has a meeting with Colonel Williams, a representative from the Air Force Department of Material Command.

Sheldon tries to stay awake with an energy drink as the gang races to finish its government project on time; Penny and Amy attend a gathering at Bert the Geologist's house; Koothrappali learns Bernadette's true feeling about her pregnancy.

After her apartment floods, Amy suggests that she and Sheldon move in together; Koothrappali finds out the gender of Howard and Bernadette's baby before they do.

Anthony Davis pranks former NFL tight end Marcedes Lewis when a routine valet drop-off turns into joyrides and errands; NBA coach Jason Kidd sends NBA superstar Cooper Flagg into a rookie symposium that devolves into awkwardness and a marital meltdown.

Imbecilic best friends Lloyd Christmas (Jim Carrey) and Harry Dunne (Jeff Daniels) stumble across a suitcase full of money left behind in Harry's car by Mary Swanson (Lauren Holly), who was on her way to the airport. The pair decide to go to Aspen, Colo., to return the money, unaware that it is connected to a kidnapping. As Harry and Lloyd -- who has fallen in love with Mary -- are pursued across the country by hired killers and police, they find both their friendship and their brains tested.

Bullied as a teen for being overweight, Bob Stone shows up to his high school reunion looking fit and muscular. While there, he finds Calvin Joyner, a fast-talking accountant who misses his glory days as a popular athlete. Stone is now a lethal CIA agent who needs Calvin's number skills to help him save the compromised U.S. spy satellite system. Together, the former classmates encounter shootouts, espionage and double-crosses while trying to prevent worldwide chaos.

It's open season on Harley Quinn when her explosive breakup with the Joker puts a big fat target on her back. Unprotected and on the run, Quinn faces the wrath of narcissistic crime boss Black Mask, his right-hand man, Victor Zsasz, and every other thug in the city. But things soon even out for Harley when she becomes unexpected allies with three deadly women -- Huntress, Black Canary and Renee Montoya.

An agent (June Gable) offers Joey a movie role as Al Pacino's naked body double; Chandler dates a liberal woman (Sofia Milos).

Chandler finds himself trapped in an ATM vestibule with model Jill Goodacre during a city-wide power failure.

Monica and Ross share their feelings about death and their grandmother.

Monica and Ross cook Thanksgiving dinner for themselves, but everyone else shows up.

The friends renege on a promise not to bring dates to their New Year's Eve party.

Chandler learns details about his mother's (Morgan Fairchild) life when she appears on national television.

Rachel's Italian boyfriend tries to seduce Phoebe; Rachel accidentally reveals a secret to Ross; Monica's aunt refuses to take the lasagnas she ordered.

Phoebe's psychiatrist boyfriend (Fisher Stevens) annoys her friends with his analyses of their lives.

It's Valentine's Day and, out on his first date in nine years, Ross meets up with his ex-wife; Monica, Phoebe and Rachel rebel against the spirit of the day by burning mementos of past relationships.

A "high-spirited" restaurant owner wolfs down the gourmet meal Monica created as part of a job interview.

Joey asks Phoebe's sister (Lisa Kudrow in a dual role) on a date; Ross takes Lamaze classes with Carol (Jane Sibbett) and Susan (Jessica Hecht).

Monica takes Rachel to the hospital; Ross asks his dad (Elliott Gould) for advice on becoming a father.

When the girls lose money to the guys in a poker match they seek out Monica's Aunt Iris, a famous card player, for lessons and then demand a rematch.

Rachel accidentally lets Ross' pet monkey escape, and the friends form a search party; she is then horrified to learn that her former best friend is engaged to her ex-fiance.

Rachel is asked to be the maid of honor in her ex-fiance's (Mitchell Whitfield) wedding.

On the last day before summer vacation, high school teacher Andy Campbell tries his best to keep it together amid senior pranks, a dysfunctional administration and budget cuts that threaten his job. Things go from bad to worse when he crosses Ron Strickland, the school's toughest and most feared teacher. When Strickland gets fired, he challenges Campbell to a fight after school. As news of the showdown spreads like wildfire, poor Andy desperately seeks any way out of his date with certain doom.

Bullied as a teen for being overweight, Bob Stone shows up to his high school reunion looking fit and muscular. While there, he finds Calvin Joyner, a fast-talking accountant who misses his glory days as a popular athlete. Stone is now a lethal CIA agent who needs Calvin's number skills to help him save the compromised U.S. spy satellite system. Together, the former classmates encounter shootouts, espionage and double-crosses while trying to prevent worldwide chaos.

Imbecilic best friends Lloyd Christmas (Jim Carrey) and Harry Dunne (Jeff Daniels) stumble across a suitcase full of money left behind in Harry's car by Mary Swanson (Lauren Holly), who was on her way to the airport. The pair decide to go to Aspen, Colo., to return the money, unaware that it is connected to a kidnapping. As Harry and Lloyd -- who has fallen in love with Mary -- are pursued across the country by hired killers and police, they find both their friendship and their brains tested.

Things do not run smoothly when Amy moves in with Sheldon, and Leonard and Penny have to intervene; Howard and Bernadette find unexpected guests at their house when they decide to cancel their vacation plans.

Penny learns there are fans of her performance in "Serial Ape-ist" when she and Leonard attend a Comic Con event; Amy hosts a brunch at Penny's apartment; Wolowitz makes an impulsive purchase.

Amy lies about repairs being made to her apartment so she can continue living with Sheldon; Leonard lets Penny decorate Sheldon's old room.

Sheldon is determined to convince Amy they should procreate; Koothrappali is reluctant to tell the gang what the new woman he's dating does for a living.

Sheldon gets jealous when a co-worker wins an award; Wolowitz finds an old remote control Stephen Hawking action figure that he made.

Sheldon and Leonard disagree about how to divide their shared belongings; Koothrappali and Stuart fight to be the most helpful to Bernadette during her final weeks of pregnancy.

While Howard and Bernadette welcome their new baby into the world, Amy celebrates her own birthday with Sheldon.

Sheldon and Amy visit Penny and Leonard after the holidays and tell them about their terrible trip to Texas.

Anthony Davis pranks former NFL tight end Marcedes Lewis when a routine valet drop-off turns into joyrides and errands; NBA coach Jason Kidd sends NBA superstar Cooper Flagg into a rookie symposium that devolves into awkwardness and a marital meltdown.

NHL forward Wyatt Johnston and Howie Mandel set up NHL defenseman Lian Bichsel at a restaurant where a romantic proposal meltdown turns him into the unwitting villain.

Bilbo Baggins lives a simple life with his fellow hobbits in the Shire, until the wizard Gandalf arrives and convinces him to join a group of dwarves on a quest to reclaim the kingdom of Erebor. The journey takes Bilbo on a path through treacherous lands swarming with orcs, goblins and other dangers, not the least of which is an encounter with Gollum and a simple gold ring that is tied to the fate of Middle Earth in ways Bilbo cannot even fathom.

Michael strikes up a friendship with the 5-year-old daughter of his enemy when children visit the office.

Michael takes the Dunder Mifflin employees ice skating to celebrate his birthday; Kevin waits nervously for test results.

Dwight finds half a joint in the parking lot and launches a full investigation; Michael asks an unusual favor.

Chaos ensues when Michael takes responsibility for conflict resolution from the Human Relations department.

Employees take some big gambles when they host a charity casino-night in their warehouse.

Michael unintentionally outs a gay employee; the situation with Jim and Pam.

Monica, Rachel and Phoebe go on a covert operation to track down the woman who stole Monica's credit card.

Monica's new boyfriend (Stan Kirsch) exposes his own secret after she admits her true age.

When Carol gives birth, Ross and Susan almost miss the event; Joey befriends an unmarried pregnant woman.

Rachel discovers Ross' feelings for her when he goes out of town on a business trip.

Rachel decides to look up her former boyfriend (Cosimo Fusco) when she is distraught over Ross' new girlfriend (Lauren Tom).

While tending his son, Ross expresses his displeasure when Phoebe tastes Carol's breast milk to check the temperature.

Monica and Rachel's grumpy downstairs neighbor (Larry Hankin) dies and leaves all his belongings to the girls.

The group is amazed when Phoebe marries a Canadian ice dancer (Steve Zahn) to help him get his green card.

The group's plans of throwing a birthday party are marred when money becomes an issue; Monica gets a promotion; Chandler sets a woman up to get a date with her, but a case of mistaken identities means that he discovers what she really thought of him.

NHL forward Wyatt Johnston and Howie Mandel set up NHL defenseman Lian Bichsel at a restaurant where a romantic proposal meltdown turns him into the unwitting villain.

Anthony Davis pranks former NFL tight end Marcedes Lewis when a routine valet drop-off turns into joyrides and errands; NBA coach Jason Kidd sends NBA superstar Cooper Flagg into a rookie symposium that devolves into awkwardness and a marital meltdown.

George Banks (Steve Martin) and his wife, Nina (Diane Keaton), are the proud parents of Annie (Kimberly Williams), but when she returns from studying abroad and announces that she's engaged, their whole world turns upside down, especially that of overprotective George. From meeting the in-laws to wedding plans with an over-the-top consultant (Martin Short) and his flamboyant assistant (B.D. Wong), it seems as if the troubles never end in this update of the classic Spencer Tracy comedy.

Just when George Banks (Steve Martin) has gotten used to his daughter, Annie (Kimberly Williams), being married, she announces that she's pregnant, making him an impending grandfather. Shaken by nearing this new milestone in his life, George soon has to process even more surprising news -- his wife, Nina (Diane Keaton), is pregnant too. Reeling from these revelations, George gets help from the eccentric Franck (Martin Short), who, conveniently, has moved from planning weddings to baby showers.

Small-time pot dealer David learns the hard way that no good deed goes unpunished; trying to help some teens, he is jumped by thugs and loses his cash and stash. Now, David's in big debt to his supplier and to wipe the slate clean, he must go to Mexico to pick up the guy's latest shipment. To accomplish his mission, Dave devises a foolproof plan: He packs a fake family into a huge RV and heads south of the border for a wild weekend that is sure to end with a bang.

Penny thinks Leonard is taking her for granted and decides to go on a spa weekend with Amy; Wolowitz and Koothrappali try to fix a squeaky floorboard in the baby's room.

Sheldon tests an MIT invention after hearing it can help him read people's emotions; Leonard finds out Penny's brother is coming to town; Raj asks his ex-girlfriends to give him dating advice.

Leonard and Wolowitz try to distract Sheldon when he slows the progress of their guidance system; Raj and Stuart look after baby Halley while Penny and Amy take Bernadette for a night out.

Sheldon and Amy have their first fight since moving in together; Koothrappali is shocked at the realities of financial independence when he stops receiving support from his father.

Cut off from his father's fortune, Koothrappali appoints Sheldon to help him get out of debt; Penny considers joining Leonard at Comic-Con.

Leonard and Penny offer Sheldon's old room to Raj after he moves out of his apartment.

Leonard, Penny and Raj settle into their new living arrangement; Sheldon expresses interest in Amy's work.

Sheldon pushes himself to the limit when he collaborates on projects with Leonard and Wolowitz as well as Amy on the same day; Bernadette nears the end of her maternity leave and must return to work.

Small-time pot dealer David learns the hard way that no good deed goes unpunished; trying to help some teens, he is jumped by thugs and loses his cash and stash. Now, David's in big debt to his supplier and to wipe the slate clean, he must go to Mexico to pick up the guy's latest shipment. To accomplish his mission, Dave devises a foolproof plan: He packs a fake family into a huge RV and heads south of the border for a wild weekend that is sure to end with a bang.

Bullied as a teen for being overweight, Bob Stone shows up to his high school reunion looking fit and muscular. While there, he finds Calvin Joyner, a fast-talking accountant who misses his glory days as a popular athlete. Stone is now a lethal CIA agent who needs Calvin's number skills to help him save the compromised U.S. spy satellite system. Together, the former classmates encounter shootouts, espionage and double-crosses while trying to prevent worldwide chaos.

On the last day before summer vacation, high school teacher Andy Campbell tries his best to keep it together amid senior pranks, a dysfunctional administration and budget cuts that threaten his job. Things go from bad to worse when he crosses Ron Strickland, the school's toughest and most feared teacher. When Strickland gets fired, he challenges Campbell to a fight after school. As news of the showdown spreads like wildfire, poor Andy desperately seeks any way out of his date with certain doom.

Steve steps in and eases Eddie's mind when the guys tease him about his virginity.

Eddie seeks Carl's help when two cops harass him; Steve wreaks havoc at the dentist.

Sheldon gets an odd request from an old friend, Paige; George Sr. and Mary are caught in the middle of Meemaw and Dale's breakup; Georgie comes clean to Mandy.

Sheldon copes with the death of a hero; Missy wants to babysit; Georgie struggles with his big secret.

George and Mary insist on meeting the new woman in Georgie's life; Sheldon and Missy have suspicions about what's going on with their family.

Sheldon and Missy learn about Georgie's pregnancy, and the whole family promises to keep it a secret.

As the church congregation gossips about Georgie, Missy stands up for her brother; Sheldon is distracted by the family drama.

Sheldon struggles to cope with his first signs of puberty; Mary and George Sr. both hunt for new jobs; Georgie and Meemaw take a business trip across the border.

Joey and Chandler decide to baby-sit and use Ben as a way to pick up women; Phoebe loses her job singing at Central Perk.

A drunken Rachel leaves a phone message for Ross that may change their relationship; Chandler regrets asking Monica to help him lose weight.

Rachel sees Ross' list comparing her pros and cons to Julie's (Lauren Tom).

Phoebe, hoping for a Christmas family reunion, travels to upstate New York in search of her biological father.

After deciding to give up acting, Joey is offered a role in a soap opera; Rachel dates a guy named Russ, who is amazingly similar to Ross.

Ross helps put Carol and Susan's wedding plans back on track; Rachel's mother announces shocking new plans.

Joey starts dating a fan (Brooke Shields) who is gorgeous, but soon discovers that she's also crazy; Ross is reminded how much he misses his pet monkey and travels to the San Diego Zoo to find out what has happened to him.

Ross (David Schwimmer) catches up with Marcel on the set of a movie starring Jean-Claude Van Damme; Chandler gets a date with a girl he liked in fourth grade.

Monica's parents drop off some childhood keepsakes including her prom video.

Ross and Rachel finally sleep together; Monica becomes infatuated with one of her parents' friends for whom she caters a party.

Monica's parents find out about her middle-aged boyfriend; Chandler and Joey argue, and it could mean the end of their living arrangement.

Joey wants to move back in with Chandler, but there's a new problem; Phoebe tapes a rock video; Ross upsets Monica.

Howard and Bernadette struggle to leave Halley in day care; Bert introduces the gang to his new girlfriend, Rebecca.

Leonard is less than thrilled when Penny considers accepting a job offer from Zack, her ex-boyfriend.

After celebrating the completion of the top-secret Air Force project, Leonard, Sheldon and Wolowitz get an unwelcome surprise; Amy receives an offer for a summer position as a visiting researcher.

The gang is concerned when Sheldon's former admirer, Dr. Ramona Nowitzki, resurfaces while Amy is away at Princeton.

Amy answers Sheldon's marriage proposal; Howard and Bernadette struggle with unexpected news.

Leonard's job is at stake after he gives an embarrassing radio interview; Amy and Bernadette bond over having to hide their success from Sheldon and Howard.

As Sheldon stresses about picking a wedding date, Amy tries to convince him he has a more laid-back side; Koothrappali and Stuart compete to win the heart of Bernadette's new co-worker.

Wolowitz and Sheldon bond over having disappointing fathers; Leonard is disturbed when his mother finds a new best friend in Penny.

Sheldon and Koothrappali confide in Bernadette when they can't handle Amy and Wolowitz working together; Penny and Leonard learn a secret from an unlikely source about dealing with Sheldon.

Sheldon auditions for the role of the new Professor Proton; Penny takes care of Halley when Bernadette and Wolowitz need bed rest.

NBA star Bam Adebayo pulls WNBA MVP A'ja Wilson into an uncomfortable autograph scandal; Anthony Davis drops NFL star safety Quentin Lake and NFL analyst Jay Glazer into chaos during a competition show gone wrong.

Anthony Davis pranks former NFL tight end Marcedes Lewis when a routine valet drop-off turns into joyrides and errands; NBA coach Jason Kidd sends NBA superstar Cooper Flagg into a rookie symposium that devolves into awkwardness and a marital meltdown.

Leonard and Wolowitz are furious when they learn Sheldon worked with the military behind their backs; Bernadette suspects Ruchi is trying to steal her job.

Sheldon tries to teach the guys a lesson after they cut him out of a potentially valuable investment; a seven-year-old video reveals a secret about Leonard and Penny's relationship.

Michael organizes a party in his hotel room when he, Dwight and Jan attend the Northeastern Mid-Market Office Supply Convention in Philadelphia.

After Jan busts Michael for having a "movie Monday," Angela pushes Dwight to make a play for Michael's job.

Michael tries to help the staff grieve after learning that the former regional manager has died.

Dwight takes Ryan on his first sales call, subjecting him to an outrageous series of tests along the way.

Michael urges the staff to support Kelly and attend a local celebration of the Hindu Festival of Lights.

Michael strives to keep the staff's spirit up after learning of the Scranton branch shutting down; people envision how their lives will change.

Old friends Jim and Pam are back together after months apart as the Scranton branch and Stamford branch are finally merged.

Michael tries to be supportive after learning that a new employee is an ex-convict; the staff compares the office to a prison.

Strife on the party-planning committee results in two competing Christmas parties; Michael gets dumped for the holidays.

Strife on the party-planning committee results in two competing Christmas parties; Michael gets dumped for the holidays.

Michael returns from his Jamaican vacation; an e-mail of a racy vacation photo makes the rounds of the office.

Andy suggests that Michael team up the staff for sales calls; Dwight tries to cover for Angela when she misses a deadline.

Oscar returns from his long vacation; Andy takes advantage of events to get closer to Michael; Jim gets Karen and Pam to help stage a prank on a new target.

Michael brings two adult performers into the office in honor of Phyllis' wedding shower; Karen confronts Pam about her past with Jim.

Mitch and Cam bring the family together to announce their plan to adopt another child.

Jay's relationship with the dog irritates Gloria; Phil and Luke try to master the tightrope; Cameron starts a juice fast.

George Sr. bails Meemaw and Georgie out of jail; Sheldon and Missy meet Mandy; Mary feels unwelcome at church.

Sheldon and Missy try to help the family's finances; Mary struggles to find her footing without the church.

Sheldon makes a terrifying mathematical discovery while tutoring Billy; Mary is jealous of Missy's relationship with Mandy and MeeMaw.

At college, Sheldon decides to expand his responsibilities and become a dorm resident adviser; Meemaw and Dale make a sketchy business deal; Mary and George Sr. rekindle their romance.

George Sr. is asked to help with the football team; Mandy discovers Georgie and Meemaw's secret business.

Sheldon's search for a comic book leads him to a breakthrough; Georgie and Mandy have an uncomfortable first encounter with her parents.

Monica and Richard experience the same romantic problems as Rachel and Ross; Joey's ill-advised comments to a fan magazine threaten his acting career.

Chandler wants his annoying new roommate (Adam Goldberg) to move out; Joey is facing some exorbitant bills; the girls learn from a book about personal empowerment.

Monica's boyfriend proves to be the life of the party when he attends a basketball game with Chandler and Joey.

Two bullies (Peter DeLuise, Nicky Katt) banish Ross and Chandler from Central Perk; Monica plays the stock market.

Rachel's separated parents (Marlo Thomas, Ron Leibman) unexpectedly attend her surprise birthday party.

Phoebe's romantic meeting with an old friend (Charlie Sheen) is stalled by a case of the chickenpox; Ben celebrates his first birthday; Monica frets about her relationship with Richard (Tom Selleck).

Rachel is a bridesmaid at her ex-fiancé's wedding; she has flashbacks of her own failed wedding day; Monica and Richard's relationship is jeopardized when the subject of children is discussed.

Monica is distraught after her break-up with Richard; Chandler and Janice begin seeing each other again; Ross tells Rachel and Chandler about his "Princess Leia" fantasy.

In a race against the clock, Ross tries to get the gang dressed and ready for a black-tie benefit at the museum.

Phoebe dates a man who thinks he's stalking her twin sister, Ursula; Ross and Rachel give Chandler "boyfriend" lessons.

Chandler tries to get over his fear of commitment; Phoebe poses as Joey's agent after she forgets to tell him about an audition.

Phoebe tries to bond with her half brother, Frank Jr., by offering to buy a massage; Ross spots Isabella Rossellini; Joey tries to build an entertainment center.

Sheldon and Amy try to use math to eliminate wedding planning stress; Koothrappali "breaks up" with Wolowitz after realizing he is hurting his confidence.

Sheldon plans an authentic "Little House on the Prairie" dinner for Amy's birthday; Leonard receives a Christmas letter from his brother.

Sheldon and Amy subject their friends to a series of secret experiments to discover which two would be most qualified to be the best man and the maid of honor at their wedding; Penny reveals her true feelings about Amy.

Sheldon kicks Amy out to work solo; Amy and Leonard bond during a series of science experiments; Bert replaces Wolowitz in the band; Sheldon finds Penny a surprising source of scientific inspiration.

Koothrappali learns the woman he's dating has a very upset husband; Sheldon rents his old room for a quiet place to work.

Sheldon petitions Wil Wheaton to appear on the new "Professor Proton" show, but Wil offers a role to Amy instead; Penny gets angry when she thinks the female protagonist in Leonard's novel is based on her.

When Bernadette won't go into labor, her friends try different tactics to get things started; Wolowitz confronts Bernadette after Amy accidentally reveals she's already chosen their son's name.

Major League Baseball pregame analysis.

From Daikin Park in Houston.

Major League Baseball postgame interviews, analysis and highlights.

Phyllis regrets giving Michael an important job at her wedding; Dwight plans to catch wedding crashers.

Ryan invites Michael to be a guest speaker at his business school; Dwight battles a bat that is loose in the office; Pam invites co-workers to her first art show.

Michael and Jan make their relationship public during a party; Jim meets Karen's ex; the staff goes to happy hour for drinks.

Darryl meets with Michael to negotiate a pay increase; Jim deals with the consequences of Pam's confession to Roy.

Andy returns from anger-management classes, planning to make a fresh start with his co-workers; Michael and Dwight try to illustrate the dangers of the workplace.

The staff goes into crisis mode after a shipment of paper goes out with an obscene watermark; Michael holds an impromptu press conference; Jim and Andy handle harried clients who used the paper.

Outrage breaks out in the office when Phyllis gets an eyeful from a flasher; Dwight and Andy work on catching the perpetrator.

Michael must recommend his own replacement when the company considers him for a corporate position; Pam must watch Jim and Karen have fun together at a company outing.

Michael, Jim and Karen go to New York to interview for a job opening; in Scranton, the new regime institutes sweeping reforms; Jan brings exciting news.

Michael, Jim and Karen go to New York to be interviewed for a job opening; in Scranton, the new regime institutes sweeping reforms; Jan comes in with exciting news.

A freak accident causes Michael to think the office is cursed; Michael decides to hold a charity 5K fun run; further developments in co-workers' romances.

A freak accident causes Michael to think the office is cursed; Michael decides to hold a charity 5K fun run; further developments in co-workers' romances.

Jay helps Manny with a school fundraiser; Claire petitions for a stop sign at a busy intersection; Phil and Luke try to create a viral video; Gloria searches for Stella.

Gloria tries to help Jay and Manny with their problems, but both are unreceptive; Claire considers running against Councilman Duane Bailey (David Cross); Cam and Mitch are the victims of a hit-and-run accident.

Phil takes Haley to visit his alma mater; Claire goes out with Mitchell and Cameron; Gloria and Jay may have to broach a delicate subject with Manny.

Sheldon must choose sides in an ethical dilemma; Mary tries her hand at writing; Mandy needs a new place to live.

Sheldon's database invention puts him at odds with the university; the church takes issue with Meemaw's video store.

Sheldon considers dropping out of college to focus on building his database; George Sr. is frustrated when someone else gets credit for his football wins.

Mary struggles to make new friends; Mandy pushes Georgie to date another woman.

Sheldon learns the university is building a database without him; Mary takes care of a bedridden Mandy and Meemaw.

Mary butts heads with Mandy's mother, Audrey; Sheldon attempts male bonding.

When Janice asks the gang if any of them have ever slept together, the friends flash back to three years earlier.

Joey sees Janice kissing her husband, whom she is divorcing while she dates Chandler; Rachel's father clashes with Ross.

Chandler is devastated after Joey tells him he saw Janice kissing her ex-husband; Monica accidentally bumps Ben's head into a post when she and Rachel babysit; Phoebe is paranoid if she goes to dentist someone she knows will die.

Emotions become the feast of the day when the gang plays a game of touch football on Thanksgiving; the turkey is left stewing when the losing team calls for a rematch.

Rachel wonders if she'll ever get another job after she quits Central Perk; Joey's new job selling Christmas trees upsets Phoebe; Ross accidentally breaks a little girl's leg.

Ross is suspicious about Rachel's possible job offer from a good-looking stranger (Steven Eckholdt); Chandler can't remember which of Joey's many sisters he kissed at a party.

Ross becomes jealous when he hears Rachel's new co-worker (Steven Eckholdt) whispering sweet nothings to her.

Running into Richard at the video store tests Monica's willpower; Joey agrees to read "Little Women."

Phoebe's ex-singing partner wants to make Phoebe's signature song, "Smelly Cat," a commercial success; Chandler dates a woman with a handicap.

Phoebe can't communicate with her new boyfriend, a UN diplomat who doesn't speak English; Ross seeks solace at a party after a bitter fight with Rachel.

A remorseful Ross tries to prevent Rachel from learning his disturbing secret; Monica, Phoebe, Chandler and Joey spend a night eavesdropping.

Excluded from Rachel's ski trip with her pals, lonely Ross visits his ex-wife (Jane Sibbett); Phoebe's cab runs out of gas and the stranded gang turns to Ross for help.

Leonard jumps through hoops to help secure the perfect wedding venue for Sheldon and Amy; Bernadette and Wolowitz have a hard time deciding who should stay at home with the kids and who should go back to work.

Penny gets the opportunity to host Bill Gates at work when his company wants to partner with hers; Leonard, Koothrappali and Wolowitz do everything in their power to meet him; Sheldon thinks he is the victim of a prank.

Leonard decides to run against Sheldon for president of the tenants' association; Bernadette encourages Wolowitz and Koothrappali to find the owner of a drone after they find it in the backyard.

A brilliant but reclusive scientist, Doctor Wolcott, invites Sheldon to his cabin in the middle of nowhere; Penny and Bernadette improvise after Amy doesn't like the tame bachelorette party they planned for her.

Sheldon's comic book store experience changes when writer Neil Gaiman puts Stuart's store on the map; friendships are threatened when Koothrappali takes credit for Penny's astronomical discovery.

Sheldon goes to Las Vegas to win money for science; Penny and Bernadette take Amy wedding dress shopping, but her terrible choice entangles them in a web of lies.

Sheldon's mother won't attend his wedding unless he invites his brother; the Wolowitz kids inadvertently infest Amy, Bernadette, Wolowitz and Koothrappali with pink eye.

When Amy's parents and Sheldon's family arrive, everybody is focused on making sure the wedding arrangements go according to plan -- everyone except the bride and groom.