A Suitcase Full Of Cash. When Meemaw's gambling room is a success, she ends up with a suitcase of illegal cash. Missy starts a business, and Sheldon tries the stock market.

Solo Peanut, Social Butterfly. Sheldon gets an odd request from an old friend, while George and Mary are caught in the middle of Meemaw and Dale's breakup.

Babies, Lies And A Cannoli. While Sheldon copes with the death of a hero, Georgie struggles with his big secret, and Missy wants to babysit.

The Meteorite Manifestation. Sheldon helps Bernadette and Howard navigate bureaucratic paperwork. Leonard is disappointed when his friends exclude him from a scientific project.

The Donation Oscillation. Penny tries to seduce an abstaining Leonard to ruin his 'donation' for her ex-boyfriend and his wife. Raj's cancelled bachelor party takes a turn.

The D & D Vortex. The gang finds out Wil Wheaton hosts a celebrity Dungeons and Dragons game. Deception and betrayal are the path to make it to the one open seat.

The Conference Valuation. While Bernadette is away and Howard is in charge of the kids, Sheldon finds a book on experimenting on kids. The guys plus Amy make a day of it.

The Laureate Accumulation. Pemberton and Campbell charm America, so Sheldon and Amy bring Nobel laureates Kip Thorne, George Smoot and Frances Arnold to their side.

The Inspiration Deprivation. Amy has a meltdown due to the pressure associated with winning a Nobel Prize. Raj and Howard try to relive the good old days.

The Decision Reverberation. Raj is worried people won't take him seriously in his own field after publishing a paper that suggests he may have discovered alien life.

The Plagiarism Schism. Kripke has proof that Dr. Pemberton plagiarized his thesis, and Sheldon and Amy aren't sure whether they should turn him in or not.

Immaculate Deception. The prospect of an empty house for the weekend has Mike and Molly in a state of excitement.

The World According To Peggy. When Peggy suddenly announces she's leaving her job, Molly scrambles to throw her a retirement party, but wonders just why Peggy is calling it quits.

Buy The Book. It's an exciting new chapter in Molly's life as her book is finally released, but she soon becomes obsessively worried that no one will buy it.

A God-Fearin' Baptist. George and Mary insist on meeting the new woman in Georgie's life, while Sheldon and Missy have suspicions about what's going on with their family.

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

White Trash, Holy Rollers. With the Coopers facing judgement from the congregation in the wake of Georgie's pregnancy, Sheldon is distracted by the family drama.

The Maternal Conclusion. Leonard is surprised when Beverly is kind to him on a visit, until he finds out the real reason she's there. Denise and Stuart overstay their welcome.

The Change Constant. Everything changes as Amy and Sheldon await big news. Howard and Bernadette leave their kids, while Leonard and Penny keep a secret.

The Stockholm Syndrome. Bernadette and Howard leave their kids, Penny and Leonard try to keep a secret, Sheldon and Amy stick together, and Raj makes a new friend.

Pilot. Brilliant physicists Leonard and Sheldon meet new neighbour Penny, who shows them that although they're smart, they know very little about real life.

The Big Bran Hypothesis. Leonard volunteers to sign for a package to make a good impression on Penny, but things go terribly awry when he enlists Sheldon for help.

The Fuzzy Boots Corollary. Leonard is depressed to learn that Penny is dating someone. Encouraged by his friends and fellow scientists, he asks a colleague out on a date.

The Luminous Fish Effect. Sheldon gets fired and explores what life has to offer outside physics, leaving Leonard to take drastic action to snap his friend out of his funk.

The Hamburger Postulate. Fearing he's wasting his time on Penny, Leonard makes a connection with Leslie. Meanwhile, Sheldon frets over a change to his hamburger routine.

Brace For Impact. Lisa struggles with Daniel's cultural expectations, Forrest meets Sheena's family, and Rick and Trish clash over financial expectations.

Working For The Enemy. Audrey's past rears its head when Georgie leaves the tire store to work for Fred Fagenbacher, Jim's longtime nemesis.

Typhoid Georgie. Georgie worries he's letting his family down when he's forced to stay home ill, and Mandy worries about how her career will affect her marriage.

Amputation Deliberation. Tyler's hands are so cracked and painful that he considers getting them amputated. And Ebonee covers the tiny bumps around her eyes with sunglasses.

Zombie Skin. Erica stabbed her hand with a pencil 45 years ago and believes the lead remains trapped in her palm. Paula's swollen feet emit a foul odour.

Jonathan's Journey. Once an EMT first responder, Jonathan now rarely leaves the room. He must break the cycle of eating if he wants to keep his wife and his life.

Whose Side Are You On? Michaella is getting married in an Irish castle and wants a princess dress for her big day. And, fashionista Shavonne has a high-style reputation to maintain.

She Popped The Thigh At Me. Bride Samantha has mastered her weight-loss goals, but can she get her mum to like her wedding dress? Plus, a bride has a glam wedding in Puerto Rico.

Teleshopping.

Teleshopping.

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

The Grand Chancellor. While Sheldon battles the mysterious Grand Chancellor of the university over science requirements, Mary makes a shocking discovery about Georgie.

The Yips And Hypnotic Bohemian. While George Sr. plays handyman at Brenda Sparks' house, Sheldon gets the science yips and has to learn how not to think.

An Expensive Glitch. Sheldon gets a dorm room all to himself, which soon becomes the campus hotspot. Meanwhile, Meemaw gets an unwanted business partner.

A Lock-In, A Weather Girl. Sheldon acts as Mary's spy when he's forced to spend the night at church for a youth lock-in. Meanwhile, Georgie gets attracted to an older woman.

A Pink Cadillac. Sheldon attends his first comic book convention, and Mary tries selling makeup.

Working For The Enemy. Audrey's past rears its head when Georgie leaves the tire store to work for Fred Fagenbacher, Jim's longtime nemesis.

Typhoid Georgie. Georgie worries he's letting his family down when he's forced to stay home ill, and Mandy worries about how her career will affect her marriage.

The Separation Triangulation. Raj learns the woman he's dating has a very upset husband. Sheldon rents his old room for a quiet place to work.

The Novelization Correlation. Wil Wheaton offers Amy a role on the new 'Professor Proton Show,' and Penny thinks the female protagonist in Leonard's novel is based on her.

The Neonatal Nomenclature. All Bernadette's friends try different tactics to get labour started. Amy accidentally reveals she's already chosen their son's name.

The Athenaeum Allocation. Leonard tries to secure the perfect wedding venue for Sheldon and Amy. Bernadette and Howard have a hard time deciding who should go back to work.

The Gates Excitation. Bill Gates' company wants to partner with Penny's pharmaceutical company. Leonard, Raj and Howard do everything in their power to meet him.

The Tenant Disassociation. Leonard decides to run against Sheldon for president of the tenants' association. Bernadette encourages Howard and Raj to find the owner of a drone.

The Reclusive Potential. A reclusive scientist invites Sheldon to his remote cabin. Penny and Bernadette improvise after Amy doesn't like the bachelorette they planned.

The Comet Polarization. Sheldon's comic book store experience changes when Neil Gaiman puts Stuart's store on the map. And Raj takes credit for Penny's astronomical discovery.

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

The Sibling Realignment. Sheldon and Leonard travel to Texas to end a family feud. The Wolowitz kids inadvertently infest Amy, Bernadette, Howard and Raj with pinkeye.

The Bow Tie Asymmetry. When Amy's parents and Sheldon's family arrive, everybody is focused on making sure all goes according to plan - everyone except the bride and groom.

The Conjugal Configuration. Sheldon and Amy's honeymoon runs aground, while Penny and Leonard discover similarities with Amy's parents. Raj insults physicist Neil deGrasse Tyson.

The Wedding Gift Wormhole. Sheldon and Amy try to figure out what 'perfect gift' Leonard and Penny gave them. Raj asks his father to arrange a marriage for him.

The Procreation Calculation. Stuart starts bringing his new girlfriend home, Penny and Leonard talk about starting a family, and Raj explores an arranged marriage.

The Tam Turbulence. Sheldon won't tell anyone why he's never mentioned his childhood friend Tam. Bernadette and Penny take out Raj's fiancée to get the skinny on her.

The Planetarium Collision. Amy doesn't have time to work on a project, so Sheldon goes to great lengths to ensure she can work with him, even if it means sabotaging her career.

The Imitation Perturbation. When Howard dresses up as Sheldon for Halloween, Sheldon seeks retaliation. Leonard is shocked that Penny doesn't remember their first kiss.

Grant Allocation Derivation. Leonard is caught in a tough spot when he's responsible for distributing extra grant money. Bernadette turns the backyard playhouse into a hideaway.

The Consummation Deviation. Sheldon tries to bond with Amy's father, but Howard lures Mr. Fowler away with magic tricks. Raj and Anu try to get physical for the first time.

The Citation Negation. Sheldon and Amy are devastated learning that Super Asymmetry has been discovered and disproven. Bernadette asks Denise to help her win a videogame.

When a mystery assassin starts killing the world's most beautiful people, former models Derek and Hansel must reclaim their fame and save the day.

Dara Ó Briain hosts hilarious chat and games with guests Rhys James, Angela Barnes, Alasdair Beckett-King, Ria Lina, Sean McLoughlin and Mark Simmons.

A Lot Of Band-Aids. Sheldon makes friends with his dorm neighbours. Meanwhile, George Sr. learns his job is in jeopardy.

A Free Scratcher. When a new scientist, Dr. Lee, joins the lab, Sheldon is the odd man out. Meanwhile, Mary is given a lotto ticket.

Leaky Legs. Dr. Lee has a surprise for Paula, who has odoriferous and painful legs. Mike must get rid of the bump on his head before two major life events.

Karen's Journey. Karen's eating has become so out of control that she's developed a fear of leaving the house and interacting with the world. Can Dr. Now help?

Big Brother Hits Kleinfeld. A bride and groom who were reality TV stars shop together. Social media pro Kristin feels the pressure to look perfect and chef Cat Cora gets married!

Dressed To Thrill. Randy recalls the looks that killed and the dresses that thrilled, from dresses fit for royalty to gowns that barely cover the bride from the season.

Teleshopping.

Teleshopping.

A Lobster, An Armadillo. Sheldon joins Dr. Linkletter and Dr. Sturgis on a science road trip, landing them in the middle of nowhere. Georgie continues to lie about his age.

A Suitcase Full Of Cash. When Meemaw's gambling room is a success, she ends up with a suitcase of illegal cash. Missy starts a business, and Sheldon tries the stock market.

Solo Peanut, Social Butterfly. Sheldon gets an odd request from an old friend, while George and Mary are caught in the middle of Meemaw and Dale's breakup.

Babies, Lies And A Cannoli. While Sheldon copes with the death of a hero, Georgie struggles with his big secret, and Missy wants to babysit.

A God-Fearin' Baptist. George and Mary insist on meeting the new woman in Georgie's life, while Sheldon and Missy have suspicions about what's going on with their family.

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

The VCR Illumination. A VHS tape inspires Sheldon to not give up on his and Amy's theory. Bernadette turns into a pageant mom over Howard's Magic Castle audition.

The Paintball Scattering. Penny and Leonard organise a paintball game that results in mayhem. Raj catches Anu with her ex, and Stuart doesn't want to move in with Denise.

The Propagation Proposition. Penny's ex, Zack, and his wife want a baby, but when Zack is infertile, they ask Leonard to help. Raj attempts to mend things with his ex-fiancée.

The Confirmation Polarization. Sheldon and Amy's theory is proven by two physicists, who then try to kick Amy off the Nobel nomination. Bernadette has a big success at work.

The Meteorite Manifestation. Sheldon helps Bernadette and Howard navigate bureaucratic paperwork. Leonard is disappointed when his friends exclude him from a scientific project.

The Donation Oscillation. Penny tries to seduce an abstaining Leonard to ruin his 'donation' for her ex-boyfriend and his wife. Raj's cancelled bachelor party takes a turn.

The D & D Vortex. The gang finds out Wil Wheaton hosts a celebrity Dungeons and Dragons game. Deception and betrayal are the path to make it to the one open seat.

The Conference Valuation. While Bernadette is away and Howard is in charge of the kids, Sheldon finds a book on experimenting on kids. The guys plus Amy make a day of it.

The Laureate Accumulation. Pemberton and Campbell charm America, so Sheldon and Amy bring Nobel laureates Kip Thorne, George Smoot and Frances Arnold to their side.

The Inspiration Deprivation. Amy has a meltdown due to the pressure associated with winning a Nobel Prize. Raj and Howard try to relive the good old days.

The Decision Reverberation. Raj is worried people won't take him seriously in his own field after publishing a paper that suggests he may have discovered alien life.

The Plagiarism Schism. Kripke has proof that Dr. Pemberton plagiarized his thesis, and Sheldon and Amy aren't sure whether they should turn him in or not.

The Maternal Conclusion. Leonard is surprised when Beverly is kind to him on a visit, until he finds out the real reason she's there. Denise and Stuart overstay their welcome.

The Change Constant. Everything changes as Amy and Sheldon await big news. Howard and Bernadette leave their kids, while Leonard and Penny keep a secret.

The Stockholm Syndrome. Bernadette and Howard leave their kids, Penny and Leonard try to keep a secret, Sheldon and Amy stick together, and Raj makes a new friend.

Pilot. Brilliant physicists Leonard and Sheldon meet new neighbour Penny, who shows them that although they're smart, they know very little about real life.

The Big Bran Hypothesis. Leonard volunteers to sign for a package to make a good impression on Penny, but things go terribly awry when he enlists Sheldon for help.

The Fuzzy Boots Corollary. Leonard is depressed to learn that Penny is dating someone. Encouraged by his friends and fellow scientists, he asks a colleague out on a date.

The Luminous Fish Effect. Sheldon gets fired and explores what life has to offer outside physics, leaving Leonard to take drastic action to snap his friend out of his funk.

The Hamburger Postulate. Fearing he's wasting his time on Penny, Leonard makes a connection with Leslie. Meanwhile, Sheldon frets over a change to his hamburger routine.

McAllister Auto Loves The Ladies. Jim feels ganged up on when Georgie and Audrey make changes to the tire store, and Mandy helps Georgie navigate a fight between her parents.

A Sportsbook And A Breakup. Mandy finds out Meemaw runs an illegal sportsbook and wants in on the action. Meanwhile, Georgie struggles to keep Mandy's new job a secret.

Dara Ó Briain introduces topical chat and laugh out loud games with guests Rhys James, Ed Byrne, Glenn Moore, Sara Pascoe and Emmanuel Sonubi.

Dara Ó Briain hosts hilarious chat and games with guests Rhys James, Angela Barnes, Alasdair Beckett-King, Ria Lina, Sean McLoughlin and Mark Simmons.

Drop It Low, Drop It Slow. Guz fits air ride suspension to his Honda , explores slammed car culture, and takes a £750k Porsche for a spin - very carefully.

White Trash, Holy Rollers. With the Coopers facing judgement from the congregation in the wake of Georgie's pregnancy, Sheldon is distracted by the family drama.

My Demon Bumps. Alyse suffers from a burning rash. Terry struggles with a painful butt cheek lipoma. James has 'demons' on his back that are ruining his life!

Be Bold. Penny turns to her family, who dish out tough love and help her stand tall. Meanwhile, Sasha is looking for a pink dress to honour her mother's battle with breast cancer.

Chuck's Story. Chuck weighs almost 700lbs and it has hindered every aspect of his life. Can Chuck take control and reclaim the life that's slipping through his fingers?

Christina's Story. Christina hasn't left her house in two years due to her size. She's eaten herself into a state that will soon kill her, but can she make a dramatic change?

Say Yes To The Dress At Home. Coronavirus has turned the bridal industry upside down, forcing Kleinfeld to shut its doors. Brides email Randy and the Kleinfeld team for support.

We Don't Always Have A Say Yes. Kleinfeld looks different but the brides are back! Dance Moms' Kendall Vertes helps her sister find a dress, and Randy gets honest with his assistant.

Teleshopping.

Teleshopping.

Immaculate Deception. The prospect of an empty house for the weekend has Mike and Molly in a state of excitement.

The World According To Peggy. When Peggy suddenly announces she's leaving her job, Molly scrambles to throw her a retirement party, but wonders just why Peggy is calling it quits.

Buy The Book. It's an exciting new chapter in Molly's life as her book is finally released, but she soon becomes obsessively worried that no one will buy it.

A God-Fearin' Baptist. George and Mary insist on meeting the new woman in Georgie's life, while Sheldon and Missy have suspicions about what's going on with their family.

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

White Trash, Holy Rollers. With the Coopers facing judgement from the congregation in the wake of Georgie's pregnancy, Sheldon is distracted by the family drama.

The Maternal Conclusion. Leonard is surprised when Beverly is kind to him on a visit, until he finds out the real reason she's there. Denise and Stuart overstay their welcome.

The Change Constant. Everything changes as Amy and Sheldon await big news. Howard and Bernadette leave their kids, while Leonard and Penny keep a secret.

The Stockholm Syndrome. Bernadette and Howard leave their kids, Penny and Leonard try to keep a secret, Sheldon and Amy stick together, and Raj makes a new friend.

Pilot. Brilliant physicists Leonard and Sheldon meet new neighbour Penny, who shows them that although they're smart, they know very little about real life.

The Big Bran Hypothesis. Leonard volunteers to sign for a package to make a good impression on Penny, but things go terribly awry when he enlists Sheldon for help.

The Fuzzy Boots Corollary. Leonard is depressed to learn that Penny is dating someone. Encouraged by his friends and fellow scientists, he asks a colleague out on a date.

The Luminous Fish Effect. Sheldon gets fired and explores what life has to offer outside physics, leaving Leonard to take drastic action to snap his friend out of his funk.

The Hamburger Postulate. Fearing he's wasting his time on Penny, Leonard makes a connection with Leslie. Meanwhile, Sheldon frets over a change to his hamburger routine.

What Ever Happened To Baby Peggy? Peggy's past proves to be fertile ground for Molly's second book, but the author discovers it's quite a chore to get her mother-in-law to fess up.

Pie Fight. When Mike hits a personal best weight-loss goal, he makes the risky decision to indulge in a slice of pie.

Cocktails And Calamine. Molly is nervous about Mike attending a celebratory party her publisher puts on for her and Peggy.

A Clogged Pore. Sheldon struggles with the first signs of puberty while his parents hunt for new jobs, and Georgie and Meemaw take a business trip across the border.

Pilot. Nine-year-old Sheldon learns that his high intelligence isn't always helpful growing up in East Texas, where church and football are king.

Rockets, Dewey Decimal System. To appease his worried mother, Sheldon employs the techniques of a self-help book to try and make a friend.

The Middle Earth Paradigm. Penny hosts a Halloween party, putting Leonard, Sheldon, Wolowitz and Koothrappali through a new test of their social skills.

The Dumpling Paradox. When Wolowitz goes AWOL with one of her friends, Penny's recruited to fill in for him on the guys' Halo team.

The Grasshopper Experiment. Raj's parents set him up on a blind date, and when he discovers he can talk to her, she shows interest in Sheldon.

Cooper-Hofstadter Polarization. When they're invited to present at a physics conference, Sheldon's reluctance to share the credit leads to a tiff between him and Leonard.

The Loobenfeld Decay. Leonard and Sheldon each lie to avoid hearing Penny sing in a production of Rent. However, Sheldon's lie becomes a bit too complicated.

The Pancake Batter Anomaly. With his friends knowing how sour he acts when sick and avoiding him as a result, Sheldon is nursed by Penny, who hasn't a clue what she's in for.

The Jerusalem Duality. With Sheldon rattled after meeting Dennis, a teen physicist who's smarter than he is, the rest of the guys search for a way to eliminate the threat.

The Bat Jar Conjecture. Sheldon finds himself booted from the gang's Physics Bowl team and replaced with Leslie, so he forms his own team hoping to prove he's superior.

Indoctrination. After Andrea Yates' horrifying act, her dark preoccupation emerges - a secretive cult, twisted teachings, and followers drawn into a web of control.

The Horror Within. Woroniecki's followers seem trapped in isolation. His teachings twist salvation into submission, possibly leading to Andrea Yates' breaking point.

Revelation. In the aftermath of the drownings, Woroniecki deflects blame onto Rusty. New insights reveal that his lessons influenced the outcome of Yates's trial.

Troop Lipoma Hills. Krystal is a witch who wants to clear a curse of a cyst from her face. Keven wants a butt lipoma removed to get his bum back into a regular shape.

Monster In The Mirror. J-Fab is the life of the party, but her shoulder bump is seriously cramping her style. Teresa's red face and bumpy nose make her feel like a monster.

Paula's Story. Paula has had a tough life, and at over 600lbs, has built a physical wall around herself to push people away. But can shed the pounds and turn her life around?

James' Story. 38-year-old James has lost both his father and sister to obesity-related issues. Now, at a staggering 650lbs, he is facing the exact same fate.

I'm Going By The Feel. Shaela is blind, but she knows exactly what kind of dress she wants. Stacey is running out of time to find an awe-inspiring reception dress.

My Husband And My Fiancee. Women in a throuple need dresses for their wedding. Plus, Ronnie has one more surprise for a COVID-19 frontline doctor who's getting married.

Teleshopping.

Teleshopping.

What Ever Happened To Baby Peggy? Peggy's past proves to be fertile ground for Molly's second book, but the author discovers it's quite a chore to get her mother-in-law to fess up.

Pie Fight. When Mike hits a personal best weight-loss goal, he makes the risky decision to indulge in a slice of pie.

Cocktails And Calamine. Molly is nervous about Mike attending a celebratory party her publisher puts on for her and Peggy.

A Clogged Pore. Sheldon struggles with the first signs of puberty while his parents hunt for new jobs, and Georgie and Meemaw take a business trip across the border.

Pilot. Nine-year-old Sheldon learns that his high intelligence isn't always helpful growing up in East Texas, where church and football are king.

Rockets, Dewey Decimal System. To appease his worried mother, Sheldon employs the techniques of a self-help book to try and make a friend.

The Middle Earth Paradigm. Penny hosts a Halloween party, putting Leonard, Sheldon, Wolowitz and Koothrappali through a new test of their social skills.

The Dumpling Paradox. When Wolowitz goes AWOL with one of her friends, Penny's recruited to fill in for him on the guys' Halo team.

The Grasshopper Experiment. Raj's parents set him up on a blind date, and when he discovers he can talk to her, she shows interest in Sheldon.

Cooper-Hofstadter Polarization. When they're invited to present at a physics conference, Sheldon's reluctance to share the credit leads to a tiff between him and Leonard.

The Loobenfeld Decay. Leonard and Sheldon each lie to avoid hearing Penny sing in a production of Rent. However, Sheldon's lie becomes a bit too complicated.

The Pancake Batter Anomaly. With his friends knowing how sour he acts when sick and avoiding him as a result, Sheldon is nursed by Penny, who hasn't a clue what she's in for.

The Jerusalem Duality. With Sheldon rattled after meeting Dennis, a teen physicist who's smarter than he is, the rest of the guys search for a way to eliminate the threat.

The Bat Jar Conjecture. Sheldon finds himself booted from the gang's Physics Bowl team and replaced with Leslie, so he forms his own team hoping to prove he's superior.

Mudlick Or Bust. Molly surprises Peggy by reuniting her with her estranged sister, Rosemary, when they take a road trip to Peggy's hometown of Mudlick.

No Kay Morale. When Peggy's depressed friend Kay returns to town, Molly is determined to find a way to lift her spirits.

Mother From Another Mudlick. Mike meets his Aunt Rosemary for the first time and is instantly smitten by her warmth and positive attitude, which is the opposite of his mother.

Poker, Faith And Eggs. When George Sr. is rushed to the emergency room, Meemaw comes to babysit. And the kids have an adventure getting to the hospital on their own.

A Therapist, A Comic Book. Sheldon refuses to eat solid food after a choking scare but finds solace in a new interest after he discovers comic books.

A Solar Calculator, A Game Ball. Sheldon uses his statistics skills to help his father coach the football team. Both Sheldon and Georgie struggle with the popularity this brings.

The Nerdvana Annihilation. When the delivery of a full-size prop of 1960's 'The Time Machine' causes Penny to miss work, she scolds Leonard about his sci-fi collectibles.

The Pork Chop Indeterminacy. The gang fall for Sheldon's twin sister, and Leonard's plan to win her heart is derailed when Sheldon declares he'll decide who can date her.

The Peanut Reaction. Penny wants to throw a surprise party for Leonard, but Sheldon's indulgence at an electronics store throws her off-track.

The Tangerine Factor. Penny's breakup spurs Leonard to summon the courage to ask her out, and they both go to Sheldon for advice on their upcoming date.

The Bad Fish Paradigm. Penny opens up to Sheldon after a less-than-stellar first date with Leonard, placing him in the uncomfortable position of having to keep a secret.

The Codpiece Topology. Seeing Penny with another guy sends Leonard back to Leslie Winkle, much to Sheldon's dismay.

The Barbarian Sublimation. Penny becomes addicted to an online game based on the world of Conan the Barbarian and persistently pesters Sheldon for advice.

The Griffin Equivalency. Full of confidence following being named one of People's 30 to Watch Under 30, Raj hits on Penny and becomes impossibly arrogant.

Dara Ó Briain introduces topical chat and laugh out loud games with guests Rhys James, Ed Byrne, Glenn Moore, Sara Pascoe and Emmanuel Sonubi.

When a mystery assassin starts killing the world's most beautiful people, former models Derek and Hansel must reclaim their fame and save the day.

Keloidcon. Alonso's lipomas are holding him back at the gym. A comic book enthusiast deals with lumps on her face. Jeffrey has a leaky head lump named Larry.

Veiny Balloons. Robert carries the weight of the huge lump on his head. Christina has big, veiny, liquid-filled balloons next to her eyes. Felipe has severe dry skin.

Tara's Story. Tara is single mother of two who feels like a prisoner in her own body. Riddled with joint pain she is determined to lose the weight - and see her kids grow up.

Amber's Story. At age 23, and over 600 lbs, Amber relies on her family for even simple needs. Her fear of dying young sends her 2,000 miles for weight loss surgery.

The Struggle Is Real. If Chef Huda can't get her entourage to agree, this contest between ball gown and mermaid will have no winners, just losers! Plus, Valerie seeks a black dress.

I'm Not Crying, You're Crying. Worlds collide as Alex looks for a black gown fit for Morticia Adams and Lucille Ball. Prashanthi's future brother-in-law asks to see a topless dress!

Teleshopping.

Teleshopping.

Mudlick Or Bust. Molly surprises Peggy by reuniting her with her estranged sister, Rosemary, when they take a road trip to Peggy's hometown of Mudlick.

No Kay Morale. When Peggy's depressed friend Kay returns to town, Molly is determined to find a way to lift her spirits.

Mother From Another Mudlick. Mike meets his Aunt Rosemary for the first time and is instantly smitten by her warmth and positive attitude, which is the opposite of his mother.

Poker, Faith And Eggs. When George Sr. is rushed to the emergency room, Meemaw comes to babysit. And the kids have an adventure getting to the hospital on their own.

A Therapist, A Comic Book. Sheldon refuses to eat solid food after a choking scare but finds solace in a new interest after he discovers comic books.

A Solar Calculator, A Game Ball. Sheldon uses his statistics skills to help his father coach the football team. Both Sheldon and Georgie struggle with the popularity this brings.

The Nerdvana Annihilation. When the delivery of a full-size prop of 1960's 'The Time Machine' causes Penny to miss work, she scolds Leonard about his sci-fi collectibles.

The Pork Chop Indeterminacy. The gang fall for Sheldon's twin sister, and Leonard's plan to win her heart is derailed when Sheldon declares he'll decide who can date her.

The Peanut Reaction. Penny wants to throw a surprise party for Leonard, but Sheldon's indulgence at an electronics store throws her off-track.

The Tangerine Factor. Penny's breakup spurs Leonard to summon the courage to ask her out, and they both go to Sheldon for advice on their upcoming date.

The Bad Fish Paradigm. Penny opens up to Sheldon after a less-than-stellar first date with Leonard, placing him in the uncomfortable position of having to keep a secret.

The Codpiece Topology. Seeing Penny with another guy sends Leonard back to Leslie Winkle, much to Sheldon's dismay.

The Barbarian Sublimation. Penny becomes addicted to an online game based on the world of Conan the Barbarian and persistently pesters Sheldon for advice.

The Griffin Equivalency. Full of confidence following being named one of People's 30 to Watch Under 30, Raj hits on Penny and becomes impossibly arrogant.

Fight To The Finish. When Molly gets angry with Mike for not listening to her vent about writing with Peggy, they go their separate ways for a day.

Near Death Do Us Part. After Carl has a near-death experience while on duty, he tells Mike he's going to propose to Victoria. But can Mike keep a secret?

The Bitter Man And The Sea. Mike and Molly are forced to 'uninvite' Carl to their anniversary cruise following his nasty breakup with Victoria.

A Patch, A Modem And A Zantac. After being dismissed in class, Sheldon is determined to prove a visiting NASA representative wrong and starts studying theoretical physics.

A Brisket, Voodoo And Cannonball Run. Meemaw refuses to give George Sr. her brisket recipe. The kids try to think of ways to resolve this family feud.

Cape Canaveral. George takes his sons to see a space shuttle launch. Meanwhile, Mary, Meemaw and Missy have a girl's night at the salon.

The Euclid Alternative. An intervention is used to try to force Sheldon to overcome his fear of driving.

The Cooper-Nowitzki Theorem. Sheldon and his friends are mystified when a younger undergraduate student is attracted to him.

The Panty Pinata Polarization. When Sheldon bans Penny from the apartment, she decides to retaliate. Howard and Raj search for the America's Next Top Model house.

The Lizard-Spock Expansion. Sheldon wants to use an alternate version of rock-paper-scissors to help resolve conflicts. A girl Wolowitz has a major crush on falls for Leonard.

The White Asparagus Triangulation. Sheldon is over-exuberant that Leonard finally has a girlfriend matching his high standards.

The Vartabedian Conundrum. Leonard seeks Penny's counsel when his relationship with Stephanie takes. Sheldon's hypochondriac tendencies get the better of him.

The Bath Item Gift Hypothesis. Sheldon irks the gangs with his obsession with proper Christmas gift protocol. Leonard's crushed when Penny dates a colleague of his.

The Killer Robot Instability. Penny's criticism of Wolowitz's romantic life pushes him into depression and AWOL for a fighting robot battle the guys are depending on him for.

To Get A Diagnosis Is Everything. Ryan has excruciating sores in his groin and a cyst on his neck. Dr Emma delivers a diagnosis, but he must give up smoking to finally recover.

It's My Third Boob. Bianca has one of the most challenging keloids that Dr Emma has ever seen. Ben must overcome his fear of needles to have his 12-year-old cyst removed.

A Prisoner In My Own Body. Amy wears a mask of makeup to hide the angry red blotches on her face. Dr Emma races to remove a tricky lipoma before the anaesthetic wears off.

Scaly Mermaid Skin. Natasha's massive ear keloids are keeping her from pursuing her modelling dreams. Eight-year-old Wynter wants her scaly mermaid skin cured.

Tales From The Cyst. Nhan has an extremely red birthmark that covers half of his face. Debbie worries that her shoulder lump will prematurely age her.

Susan's Story. At over 600 lbs, Susan is committed to drastic weight loss. But when a medical disorder strikes her mobility, her plight becomes a matter of life and death.

Pauline's Story. At nearly 700 lbs Pauline has an addiction to food that is killing her and taken over the life of her son. Can she overcome it and save both their lives?

Our Dress Has To Go Viral. Amanda has been obsessing over a Randy Fenoli dress, but will it live up to the hype? Kindra and her pastor mother can't agree on a suitable dress.

Ugly Duckling. After transitioning, Chloe hopes to find a dress that makes her feel like her true self. Country singer Jenny needs a dress that suits her snowy wedding vision.

Teleshopping.

Teleshopping.

Fight To The Finish. When Molly gets angry with Mike for not listening to her vent about writing with Peggy, they go their separate ways for a day.

Near Death Do Us Part. After Carl has a near-death experience while on duty, he tells Mike he's going to propose to Victoria. But can Mike keep a secret?

The Bitter Man And The Sea. Mike and Molly are forced to 'uninvite' Carl to their anniversary cruise following his nasty breakup with Victoria.

A Patch, A Modem And A Zantac. After being dismissed in class, Sheldon is determined to prove a visiting NASA representative wrong and starts studying theoretical physics.

A Brisket, Voodoo And Cannonball Run. Meemaw refuses to give George Sr. her brisket recipe. The kids try to think of ways to resolve this family feud.

Cape Canaveral. George takes his sons to see a space shuttle launch. Meanwhile, Mary, Meemaw and Missy have a girl's night at the salon.

The Euclid Alternative. An intervention is used to try to force Sheldon to overcome his fear of driving.

The Cooper-Nowitzki Theorem. Sheldon and his friends are mystified when a younger undergraduate student is attracted to him.

The Panty Pinata Polarization. When Sheldon bans Penny from the apartment, she decides to retaliate. Howard and Raj search for the America's Next Top Model house.

The Lizard-Spock Expansion. Sheldon wants to use an alternate version of rock-paper-scissors to help resolve conflicts. A girl Wolowitz has a major crush on falls for Leonard.

The White Asparagus Triangulation. Sheldon is over-exuberant that Leonard finally has a girlfriend matching his high standards.

The Vartabedian Conundrum. Leonard seeks Penny's counsel when his relationship with Stephanie takes. Sheldon's hypochondriac tendencies get the better of him.

The Bath Item Gift Hypothesis. Sheldon irks the gangs with his obsession with proper Christmas gift protocol. Leonard's crushed when Penny dates a colleague of his.

The Killer Robot Instability. Penny's criticism of Wolowitz's romantic life pushes him into depression and AWOL for a fighting robot battle the guys are depending on him for.

Cops On The Rocks. Mike and Carl decide to go to couples counselling to try and reconcile their partnership. Plus, Molly decides to do a promotional radio interview.

One Small Step For Mike. Molly has high hopes that a fitness tracking device will encourage Mike to be more active. But Mike has other plans for it.

Peg O' My Heart Attack. After Peg suffers a heart attack after a heated argument with Molly, Mike blames his wife, who immediately sets out to make amends.

Spock, Kirk And Testicular Hernia. George Sr. makes a deal with Sheldon to tutor his brother when Georgie's poor grades threaten his place on the football team.

Eagle Feather, String Bean. Sheldon interviews with a school for gifted children. Much to their surprise, the rest of the family struggle with his absence.

Demons, Sunday School. A worried Mary sends Sheldon to Sunday school after she finds him playing Dungeons & Dragons with Tam and Billy.

The Friendship Algorithim. Looking to get friendly with Barry Kripke to gain access to a piece of high-tech lab equipment, Sheldon develops a flowchart process to make friends.

The Financial Permeability. When Sheldon loans money to Penny so she can pay her rent, it leads to Leonard coming face-to-face with her ex, Kurt.

The Maternal Capacitance. A visit from Leonard's mother ends up bringing him and Penny closer.

The Cushion Saturation. Paintball leads to a squabble between Sheldon and Penny as well as romance between Howard and Leslie.

The Terminator Decoupling. The gang is thrilled to see Summer Glau is also aboard their train to San Francisco. Sheldon frets over having forgotten a paper he wants to present.

The Work Song Nanocluster. Penny's business selling hair accessories out of her apartment gets out of hand when an over-caffeinated Sheldon takes charge.

The Dead Hooker Juxtaposition. Penny feels threatened when another sexy woman moves into the apartment building and angered when she senses the guys are being taken advantage of.

The Hofstadter Isotope. A fellow comic book enthusiast's hitting on Penny leads to Leonard, Raj and Howard going to a bar's Ladies' Night.

The Act Of Tinseling. Pedro tells Liz he worries Sophie isn't ready for a relationship. Cortney and Colt still have intimacy issues, as she wonders about his intentions.

Why I Want To Be A Monogamist. Christine and David visit Janelle. Kody and Robyn discuss their now monogamist relationship and the possibility of bringing in a new wife.

To Get A Diagnosis Is Everything. Ryan has excruciating sores in his groin and a cyst on his neck. Dr Emma delivers a diagnosis, but he must give up smoking to finally recover.

Crazy, Stupid, Lump. Jess is looking for love but has a giant bump on his neck. Former NFL defensive tackle, Marcell Dareus, hopes Dr. Lee can tackle his forehead lipoma.

California Bumpin'. Brent has a tricep bump that could be intertwined in his muscle. Plus, Jeb avoids the beach because of the massive number of bumps all over his body.

Bettie Jo's Story. At just 24, Bettie Jo is eating her way towards 700-lbs. Housebound, she is reliant on her husband for even basic needs. But can she shed the pounds?

Joe's Story. Joe is only 30, and trapped in an 800-lb body. He lost his job and is mostly housebound. Can Joe find the strength to face his past and save his life?

Thank You, Next. ICU nurse Isabella is hoping her final look will come together just days before her wedding. Plus, LaQuesha is determined to find two blingy dresses!

Mom, You've Said Just Enough. Christie loves plunging necklines, but her mum doesn't want anything too revealing. Monique is so picky that she has Mindy and Randy both stumped.

Teleshopping.

Teleshopping.

Cops On The Rocks. Mike and Carl decide to go to couples counselling to try and reconcile their partnership. Plus, Molly decides to do a promotional radio interview.

One Small Step For Mike. Molly has high hopes that a fitness tracking device will encourage Mike to be more active. But Mike has other plans for it.

Peg O' My Heart Attack. After Peg suffers a heart attack after a heated argument with Molly, Mike blames his wife, who immediately sets out to make amends.

Spock, Kirk And Testicular Hernia. George Sr. makes a deal with Sheldon to tutor his brother when Georgie's poor grades threaten his place on the football team.

Eagle Feather, String Bean. Sheldon interviews with a school for gifted children. Much to their surprise, the rest of the family struggle with his absence.

Demons, Sunday School. A worried Mary sends Sheldon to Sunday school after she finds him playing Dungeons & Dragons with Tam and Billy.

The Friendship Algorithim. Looking to get friendly with Barry Kripke to gain access to a piece of high-tech lab equipment, Sheldon develops a flowchart process to make friends.

The Financial Permeability. When Sheldon loans money to Penny so she can pay her rent, it leads to Leonard coming face-to-face with her ex, Kurt.

The Maternal Capacitance. A visit from Leonard's mother ends up bringing him and Penny closer.

The Cushion Saturation. Paintball leads to a squabble between Sheldon and Penny as well as romance between Howard and Leslie.

The Terminator Decoupling. The gang is thrilled to see Summer Glau is also aboard their train to San Francisco. Sheldon frets over having forgotten a paper he wants to present.

The Work Song Nanocluster. Penny's business selling hair accessories out of her apartment gets out of hand when an over-caffeinated Sheldon takes charge.

The Dead Hooker Juxtaposition. Penny feels threatened when another sexy woman moves into the apartment building and angered when she senses the guys are being taken advantage of.

The Hofstadter Isotope. A fellow comic book enthusiast's hitting on Penny leads to Leonard, Raj and Howard going to a bar's Ladies' Night.

Super Cop. Mike becomes hyper-vigilant after his wallet is stolen from the squad car while taking a nap.

Joyce's Will Be Done. Molly is shocked when Joyce reveals she's leaving the house to Victoria in her will.

The Good Wife. Molly's leisure activities between novels become an issue for Mike. Tensions rise as he wants her to be the perfect homemaker.

A Computer, A Plastic Pony. Sheldon asking for a computer has unforeseen consequences for his parents, prompting Mary and the twins to move in with Meemaw.

A Sneeze, Detention. Sheldon's germophobia lands him in detention when flu season hits Medford and he takes extreme measures to remain healthy.

Potato Salad, A Broomstick. When Mary takes a job at the church, Sheldon and Missy are left home alone for the very first time.

Penny's.

Classified Material Turbulence. Stuart asks Leonard's advice for a date with Penny. Wolowitz realises there's an error in a toilet he designed for the International Space Station.

The Monopolar Expedition. The guys receive a prestigious offer to work over the summer at the North Pole, and Penny's resultant behaviour leaves Leonard unsure if he should go.

The Electric Can Opener. Discovering Leonard, Raj and Howard fudged the results of his Arctic research expedition, a disgraced Sheldon heads home to Texas.

The Jiminy Conjecture. Sheldon and Howard wager comic books over a cricket's species. Meanwhile, a less-than-perfect romantic night agonizes Leonard and Penny.

The Gothowitz Deviation. Howard takes Raj along to check out the Goth dating scene. Sheldon uses chocolate as part of a behaviour modification experiment on Penny.

The Pirate Solution. Facing a return to India, Raj needs a job desperately enough to consider working for Sheldon. Howard becomes a third wheel to Leonard and Penny.

Creepy Candy Coating Corollary. Sheldon looks forward to squaring off against a Star Trek actor in a fantasy card game tournament. Wolowitz cashes in on an old pact with Leonard.

Please Remain Seated. Forrest and Sheena's families meet. Jovon and Annalynn don't see eye to eye. Laura grows suspicious of Birkan. Rick is unsure about having more kids.

McAllister Auto Loves The Ladies. Jim feels ganged up on when Georgie and Audrey make changes to the tire store, and Mandy helps Georgie navigate a fight between her parents.

A Sportsbook And A Breakup. Mandy finds out Meemaw runs an illegal sportsbook and wants in on the action. Meanwhile, Georgie struggles to keep Mandy's new job a secret.

Quadripple Nipple. Don has a case of crippling psoriasis that has completely taken over his body. Jeff has a huge growth over his spine that looks like a hunchback.

Dr. Pimple Popper. Angelina's huge chest lump affects her love life and Delano has a football-sized mass on his back. Plus, Carla hopes to get painful cysts removed from her scalp.

Angel's Story. At 42 years old, Angel is staring death in the face. She is struggling to make a positive change and be an active part of her partner and son's lives.

Charity's Story. Suffering from flesh-eating bacteria and weighing almost 800-lbs, Charity relies on her family. When bad news threatens her weight loss can she carry on?

Kleinfeld, Here I Come! Morgan worries her mum will reject her dress three months before her wedding. Elaina must take back control of her appointment from her bossy sister.

A Season of Surprises. Brides have high expectations and occasionally there are shocking moments in the salon. Randy looks back at some of the best moments this season.

Teleshopping.

Teleshopping.

A Clogged Pore. Sheldon struggles with the first signs of puberty while his parents hunt for new jobs, and Georgie and Meemaw take a business trip across the border.

Pilot. Nine-year-old Sheldon learns that his high intelligence isn't always helpful growing up in East Texas, where church and football are king.

Rockets, Dewey Decimal System. To appease his worried mother, Sheldon employs the techniques of a self-help book to try and make a friend.

Poker, Faith And Eggs. When George Sr. is rushed to the emergency room, Meemaw comes to babysit. And the kids have an adventure getting to the hospital on their own.

A Therapist, A Comic Book. Sheldon refuses to eat solid food after a choking scare but finds solace in a new interest after he discovers comic books.

A Solar Calculator, A Game Ball. Sheldon uses his statistics skills to help his father coach the football team. Both Sheldon and Georgie struggle with the popularity this brings.

McAllister Auto Loves The Ladies. Jim feels ganged up on when Georgie and Audrey make changes to the tire store, and Mandy helps Georgie navigate a fight between her parents.

A Sportsbook And A Breakup. Mandy finds out Meemaw runs an illegal sportsbook and wants in on the action. Meanwhile, Georgie struggles to keep Mandy's new job a secret.

The Middle Earth Paradigm. Penny hosts a Halloween party, putting Leonard, Sheldon, Wolowitz and Koothrappali through a new test of their social skills.

The Dumpling Paradox. When Wolowitz goes AWOL with one of her friends, Penny's recruited to fill in for him on the guys' Halo team.

The Grasshopper Experiment. Raj's parents set him up on a blind date, and when he discovers he can talk to her, she shows interest in Sheldon.

Cooper-Hofstadter Polarization. When they're invited to present at a physics conference, Sheldon's reluctance to share the credit leads to a tiff between him and Leonard.

The Loobenfeld Decay. Leonard and Sheldon each lie to avoid hearing Penny sing in a production of Rent. However, Sheldon's lie becomes a bit too complicated.

The Pancake Batter Anomaly. With his friends knowing how sour he acts when sick and avoiding him as a result, Sheldon is nursed by Penny, who hasn't a clue what she's in for.

The Jerusalem Duality. With Sheldon rattled after meeting Dennis, a teen physicist who's smarter than he is, the rest of the guys search for a way to eliminate the threat.

The Bat Jar Conjecture. Sheldon finds himself booted from the gang's Physics Bowl team and replaced with Leslie, so he forms his own team hoping to prove he's superior.

The Nerdvana Annihilation. When the delivery of a full-size prop of 1960's 'The Time Machine' causes Penny to miss work, she scolds Leonard about his sci-fi collectibles.

The Pork Chop Indeterminacy. The gang fall for Sheldon's twin sister, and Leonard's plan to win her heart is derailed when Sheldon declares he'll decide who can date her.

The Peanut Reaction. Penny wants to throw a surprise party for Leonard, but Sheldon's indulgence at an electronics store throws her off-track.

The Tangerine Factor. Penny's breakup spurs Leonard to summon the courage to ask her out, and they both go to Sheldon for advice on their upcoming date.

The Bad Fish Paradigm. Penny opens up to Sheldon after a less-than-stellar first date with Leonard, placing him in the uncomfortable position of having to keep a secret.

The Codpiece Topology. Seeing Penny with another guy sends Leonard back to Leslie Winkle, much to Sheldon's dismay.

The Barbarian Sublimation. Penny becomes addicted to an online game based on the world of Conan the Barbarian and persistently pesters Sheldon for advice.

The Griffin Equivalency. Full of confidence following being named one of People's 30 to Watch Under 30, Raj hits on Penny and becomes impossibly arrogant.

The Euclid Alternative. An intervention is used to try to force Sheldon to overcome his fear of driving.

The Cooper-Nowitzki Theorem. Sheldon and his friends are mystified when a younger undergraduate student is attracted to him.

The Panty Pinata Polarization. When Sheldon bans Penny from the apartment, she decides to retaliate. Howard and Raj search for the America's Next Top Model house.

The Lizard-Spock Expansion. Sheldon wants to use an alternate version of rock-paper-scissors to help resolve conflicts. A girl Wolowitz has a major crush on falls for Leonard.

Dara Ó Briain introduces topical chat and laugh out loud games with guests Rhys James, Ed Byrne, Glenn Moore, Sara Pascoe and Emmanuel Sonubi.

Soon-to-be-married Peter's lack of male friends prompts him to undertake a quest to find true 'bromance' so he can have a best man at the wedding.

A Patch, A Modem And A Zantac. After being dismissed in class, Sheldon is determined to prove a visiting NASA representative wrong and starts studying theoretical physics.

A Brisket, Voodoo And Cannonball Run. Meemaw refuses to give George Sr. her brisket recipe. The kids try to think of ways to resolve this family feud.

The Lipoma Whisperer. Melissa covered her huge lipoma with a sweatshirt for years. Tyler's fear of cancer stopped his head lumps being diagnosed and Tahj is covered in painful boils.

Laura's Story. Laura has used food to cope with her emotions for too long. Confined to a wheelchair, she depends upon her husband and mother to survive. Can she turn her life around?

Marla's Story. Marla is so heavy she cannot stand up. Bedridden, she must face the facts about her health and the toll it takes on her supportive family, if she is to save her health.

From Snickers Bar To Caviar. Kerry's outrageous entourage keeps stealing her spotlight! Gretchen needs a gown all four of her sisters will love, and Alex questions her dress choice.

Is Anyone Listening To Me? Kayla's family threatens to take over her appointment. Milan considers getting a customised dress. Prashanthi's fitting doesn't go according to plan.

Teleshopping.

Teleshopping.

Cape Canaveral. George takes his sons to see a space shuttle launch. Meanwhile, Mary, Meemaw and Missy have a girl's night at the salon.

Spock, Kirk And Testicular Hernia. George Sr. makes a deal with Sheldon to tutor his brother when Georgie's poor grades threaten his place on the football team.

Eagle Feather, String Bean. Sheldon interviews with a school for gifted children. Much to their surprise, the rest of the family struggle with his absence.

Demons, Sunday School. A worried Mary sends Sheldon to Sunday school after she finds him playing Dungeons & Dragons with Tam and Billy.

A Computer, A Plastic Pony. Sheldon asking for a computer has unforeseen consequences for his parents, prompting Mary and the twins to move in with Meemaw.

A Sneeze, Detention. Sheldon's germophobia lands him in detention when flu season hits Medford and he takes extreme measures to remain healthy.

The White Asparagus Triangulation. Sheldon is over-exuberant that Leonard finally has a girlfriend matching his high standards.

The Vartabedian Conundrum. Leonard seeks Penny's counsel when his relationship with Stephanie takes. Sheldon's hypochondriac tendencies get the better of him.

The Bath Item Gift Hypothesis. Sheldon irks the gangs with his obsession with proper Christmas gift protocol. Leonard's crushed when Penny dates a colleague of his.

The Killer Robot Instability. Penny's criticism of Wolowitz's romantic life pushes him into depression and AWOL for a fighting robot battle the guys are depending on him for.

The Friendship Algorithim. Looking to get friendly with Barry Kripke to gain access to a piece of high-tech lab equipment, Sheldon develops a flowchart process to make friends.

The Financial Permeability. When Sheldon loans money to Penny so she can pay her rent, it leads to Leonard coming face-to-face with her ex, Kurt.

The Maternal Capacitance. A visit from Leonard's mother ends up bringing him and Penny closer.

The Cushion Saturation. Paintball leads to a squabble between Sheldon and Penny as well as romance between Howard and Leslie.

The Terminator Decoupling. The gang is thrilled to see Summer Glau is also aboard their train to San Francisco. Sheldon frets over having forgotten a paper he wants to present.

The Work Song Nanocluster. Penny's business selling hair accessories out of her apartment gets out of hand when an over-caffeinated Sheldon takes charge.

The Dead Hooker Juxtaposition. Penny feels threatened when another sexy woman moves into the apartment building and angered when she senses the guys are being taken advantage of.

The Hofstadter Isotope. A fellow comic book enthusiast's hitting on Penny leads to Leonard, Raj and Howard going to a bar's Ladies' Night.

Penny's.

Classified Material Turbulence. Stuart asks Leonard's advice for a date with Penny. Wolowitz realises there's an error in a toilet he designed for the International Space Station.

The Monopolar Expedition. The guys receive a prestigious offer to work over the summer at the North Pole, and Penny's resultant behaviour leaves Leonard unsure if he should go.

The Electric Can Opener. Discovering Leonard, Raj and Howard fudged the results of his Arctic research expedition, a disgraced Sheldon heads home to Texas.

The Jiminy Conjecture. Sheldon and Howard wager comic books over a cricket's species. Meanwhile, a less-than-perfect romantic night agonizes Leonard and Penny.

The Gothowitz Deviation. Howard takes Raj along to check out the Goth dating scene. Sheldon uses chocolate as part of a behaviour modification experiment on Penny.

The Pirate Solution. Facing a return to India, Raj needs a job desperately enough to consider working for Sheldon. Howard becomes a third wheel to Leonard and Penny.

Creepy Candy Coating Corollary. Sheldon looks forward to squaring off against a Star Trek actor in a fantasy card game tournament. Wolowitz cashes in on an old pact with Leonard.

Goddess Of The Music Store. Georgie helps Connor impress his new crush, while Mandy, Audrey and Jim struggle to butt out of Connor's love life.

Baby Fight! Georgie and Mandy worry they're not on the same page when they disagree about having another kid, and Mary, Jim and Audrey struggle to stay out of it.

In the satirical panel show with a standup twist, Dara Ó Briain hosts as two teams of top comedians battle to poke fun at the week's news.

Dara Ó Briain introduces topical chat and laugh out loud games with guests Rhys James, Ed Byrne, Glenn Moore, Sara Pascoe and Emmanuel Sonubi.