The Lindsey P Episode. Jo and Al face their most opinionated entourage ever, and bride Honor's appointment ends in disaster! Plus, anxious bride Lindsey gets her final fitting.

The Coral F Episode. Farmer's fiancée, Coral, and her mum clash over her outdoor wedding. And, Chloe is fixated by an unflattering fishtail dress. Can Jo and Al help change her mind?

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 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.

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.

A New Scoreboard. Georgie and Fagenbacher go head-to-head when Fagenbacher tries to sabotage Georgie's attempt to honour his dad.

Little Schmoozin'. Georgie's plan to get on the news sparks a feud between Mandy and a rival weathergirl. Meanwhile, Mandy tries to use the conflict to help her career.

Dara Ó Briain introduces topical chat and hilarious games with two teams of top stand-up comedians as they look back over the week's news.

Dara Ó Briain introduces an end of series special featuring a look back at the best bits, hilarious out-takes and some brand-new material.

Dara Ó Briain introduces topical chat and hilarious games with two teams of top stand-up comedians as they look back over the week's news.

Istanbul. Leech therapy, brutal massages and shaving a grown man are all on the menu for comedians Roisin Conaty and Sara Pascoe's Istanbul odyssey.

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.

A Lipoma Jackpot. Belinda's lump on her neck causes her to be immobile. Nicole won't get married until she gets her arm pit lump removed. And, Nick unwisely removed a lipoma at home.

The Lisa Episode. A self-conscious bride and her straight talking mom prove quite the challenge for the team. Plus, will Jo and Al deliver for a bride with very high expectations?

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?

The Rebecca L Episode. Bride Lindsey is having a magical woodland wedding and wants a themed dress to match! Jo and Al help military bride Rebecca find a confidence-boosting gown.

The Sarah G Episode. Sarah was bullied at school due to her size. Can Jo and Al build her confidence as a bride? And Joanna's osteoarthritis won't stop her finding the dream dress.

Teleshopping.

Teleshopping.

Mike & Molly's Adventure. Molly is determined to get Mike out of his routine. They try new things together, until reality sets in and it's time to pay the bill.

Weekend At Peggy's. Following a dramatic argument with Joyce over money, Mike and Molly move into Mike's childhood room at Peggy's.

Dips & Salsa. Mike asks Carl to replace him as Molly's dance partner at a salsa class but gets jealous when he realises they're having way too much fun.

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 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 6:10 To Lubbock. Georgie and Mandy get fed up staying with her parents and reconsider their living situation after a fight with Mandy's mum, Audrey.

Some New York Nonsense. Georgie struggles to balance life, work and family. Mandy worries for Georgie's wellbeing and Missy gets into trouble at school.

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.

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.

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

Dara Ó Briain introduces topical chat and hilarious games with two teams of top stand-up comedians as they look back over the week's news.

A master thief plots revenge after being double-crossed and his mentor murdered by one of his own crew following a 35-million-dollar gold heist.

Mind Over Molly. Molly grudgingly goes to a therapist at Mike's urging.

Open Mike Night. A confident Molly offers her wisdom to Samuel who now wants to be a standup comic. Her advice causes him to challenge his protective mother.

An American Tail. The large bump at the base of Taylor's spine is more dangerous than she realizes. John has an embarrassing hip lump, and Noelle wants her stretched ears repaired.

Wess' Journey. Wess gets off to a great start in Dr. Now's programme, shedding weight quickly. But when the cravings continue after surgery, Dr. Now sends him to therapy.

Family Support. Susan's family travels from New York to see her dress. Meanwhile, Suzanne brings her soon to be mother-in-law, who she is meeting for only the third time.

The Louise D Episode. After having a gastric band fitted, Louise has gained weight again. Can Jo and Al help the bride face herself in the mirror and beat her crippling insecurities?

Teleshopping.

Teleshopping.

The 6:10 To Lubbock. Georgie and Mandy get fed up staying with her parents and reconsider their living situation after a fight with Mandy's mum, Audrey.

Some New York Nonsense. Georgie struggles to balance life, work and family. Mandy worries for Georgie's wellbeing and Missy gets into trouble at school.

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.

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.

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

Secrets, Lies, Chunk Of Change. Georgie digs into Mandy's past when he finds she's been hiding thousands of dollars of debt. Mandy tries to right her wrongs by going back to work.

Todd's Mom. Things get awkward when Georgie and Mandy try to make new friends. Meanwhile, Jim and Audrey get competitive playing a game with Connor.

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.

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 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.

Not Tonight, Satan. Tammy starts volunteering at an animal shelter. Amy makes a big decision for the wedding and Chris tries to orchestrate peace between Tammy and Amy.

Tinture Tantrums. Chris hosts a BBQ to celebrate Brittany's weight loss but is overshadowed by Amy's maid of honour reveal. Tammy and Amy's relationship takes a turn.

The Last Unicorn. Louis is covered in scaly skin that makes him feel like an alligator. Jennifer can't focus on her career due to a large unicorn-like lump on her forehead.

Rich Man, Poor Girl. Victoria brings home a new boyfriend, James and the entire family wonders if he's finally 'the one.'.

Three Girls And An Urn. Molly meets the best buddy of her dreams when Peggy's childhood friend, Kay McKinnon comes to town, but Peggy is not keen on sharing.

Every Rosacea Has Its Thorn. Patrick's nose is covered by huge bumps and he can barely breathe. Matt has suffered from neurofibromatosis his entire life and is in incredible pain.

Syreeta's Journey. Syreeta needs help but thinks that anyone trying to help has an ulterior motive. Surgery will be tough if she can't learn to trust the surgeon.

The Verity S Episode. Jo and Al encourage introvert bride Verity to try on a dress. Plus, Laura is terrified of shopping, but the indecisive bride-to-be is ready to face her fear!

The Emma B Episode. Emma brings her daughter along to try on dresses, but they don't see eye to eye. Plus, Nicky started gaining weight at 6 years old and recently lost seven stone!

Teleshopping.

Teleshopping.

Secrets, Lies, Chunk Of Change. Georgie digs into Mandy's past when he finds she's been hiding thousands of dollars of debt. Mandy tries to right her wrongs by going back to work.

Todd's Mom. Things get awkward when Georgie and Mandy try to make new friends. Meanwhile, Jim and Audrey get competitive playing a game with Connor.

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.

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 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.

Thanksgiving. Mandy struggles to get Georgie's family to join him for his first Thanksgiving without his dad.

A Regular Samaritan. Georgie joins a church to sell tires to the congregation. Mandy worries there is more to the story than that.

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.

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.

Now. Caleb. After deaths in his family, Caleb's struggle with his weight worsened. At 20-years-old and 800 pounds, he turns to Dr. Now before it's too late.

Ready For A Skinny Wife? Years of criticism from her two sisters led Molly to pack on the pounds. Can she convince Dr. Procter that she is ready for bariatric surgery?

Nose No Bounds. April is covered in bumps that have disfigured her arms. And, Genner has flown all the way from the Philippines to have Dr. Lee help with his bumpy nose.

The Dice Lady Cometh. Molly looks to win some extra cash when she and the girls head to a riverboat casino for the weekend. Mike and Vince try to enjoy college football.

McMillan And Mom. Mike and Samuel take a road trip to Memphis to meet Carl's mother for the first time after Carl finds out she has been ill.

Tumor Takeover. Matt has a skin condition that causes tumours to grow all over his body. Plus, Jennifer has a unicorn bump on her forehead.

Mark's Journey. Turning down medical advice, Mark believes he can lose 500 pounds on his own. But Dr. Now sees this as another excuse not to change.

The Kierette Episode. Bride Kellie's choice of veil for her Halloween-themed wedding causes controversy! And, Al and Jo help rebuild Kierette's confidence with the right dress.

The Mandy Episode. After embarking on her weight-loss journey, bride Mandy returns to try on her dress for the first time in over a year. And, Alison wants a bold gown.

Teleshopping.

Teleshopping.

Thanksgiving. Mandy struggles to get Georgie's family to join him for his first Thanksgiving without his dad.

A Regular Samaritan. Georgie joins a church to sell tires to the congregation. Mandy worries there is more to the story than that.

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.

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.

An Old Mustang. Georgie worries that he's leaving Connor out of his new project with Jim. Meanwhile, Mandy and Audrey struggle to decorate CeeCee's nursery.

Diet Crap. Tensions rise when Georgie intrudes on Mandy's new sales gig. Meanwhile, Audrey's conflicted when Jim makes it a point not to coddle Connor.

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.

Dolomite, Apple Slices. Sheldon makes a new friend who introduces him to a new field of science, while his parents disagree on how to handle Sheldon's blossoming social life.

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.

The Cornhusker Vortex. Hoping to fit in with Penny's football-loving friends, Leonard gets tutored in the sport by Sheldon. Raj is furious over the loss of his patang.

The Guitarist Amplification. Leonard and Penny's first big fight sees Sheldon playing mediator due to childhood trauma that means he can't be around loud verbal conflicts.

The Vengeance Formulation. Barry Kripke pranks Sheldon during his spot on NPR, leaving him wanting vengeance. Bernadette pressures Wolowitz to define their relationship.

The Gorilla Experiment. Penny seeks Sheldon's help to better comprehend Leonard's physics work. Wolowitz sees green when Leonard invites Bernadette to watch an experiment.

The Maternal Congruence. A Christmas visit from his mother has Leonard discovering she's kept a lot of news from him that she shares with Sheldon.

A business exec fights loneliness and many physical challenges when a plane crash leaves him stranded alone on an island for four years.

Mike's Manifold Destiny. When his car breaks down, Mike is forced to decide whether or not to accept a loan from Carl to fix it.

Who's Afraid Of J.C. Small? Mike and Carl arrest Molly's literary hero for driving under the influence. Later, after Molly repeatedly helps the author, she is offered a job.

Sisters Lumpity Lump Lump. Amber has hundreds of tumours on her face. Cheri and Janice suffer from possibly matching lumps. Tatiana has an embarrassing bump on her butt cheek.

Stephanie's Journey. With her weight spiralling, Stephanie needs her mum's help to care for her three kids. Now, she must lose weight if she's to see her kids grow up.

The Emma R Episode. A son and daughter are brutally honest when they help their mum find a wedding dress. Plus, Al and Jo try to fix a family rift between bride Emma and her mum.

The Amy D Episode. Despite losing eight stone, Amy still has seriously low self-esteem. Plus, blogger Laura has amazing confidence but very high expectations for her dream dress.

Teleshopping.

Teleshopping.

An Old Mustang. Georgie worries that he's leaving Connor out of his new project with Jim. Meanwhile, Mandy and Audrey struggle to decorate CeeCee's nursery.

Diet Crap. Tensions rise when Georgie intrudes on Mandy's new sales gig. Meanwhile, Audrey's conflicted when Jim makes it a point not to coddle Connor.

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.

Dolomite, Apple Slices. Sheldon makes a new friend who introduces him to a new field of science, while his parents disagree on how to handle Sheldon's blossoming social life.

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.

The Cornhusker Vortex. Hoping to fit in with Penny's football-loving friends, Leonard gets tutored in the sport by Sheldon. Raj is furious over the loss of his patang.

The Guitarist Amplification. Leonard and Penny's first big fight sees Sheldon playing mediator due to childhood trauma that means he can't be around loud verbal conflicts.

The Vengeance Formulation. Barry Kripke pranks Sheldon during his spot on NPR, leaving him wanting vengeance. Bernadette pressures Wolowitz to define their relationship.

The Gorilla Experiment. Penny seeks Sheldon's help to better comprehend Leonard's physics work. Wolowitz sees green when Leonard invites Bernadette to watch an experiment.

The Maternal Congruence. A Christmas visit from his mother has Leonard discovering she's kept a lot of news from him that she shares with Sheldon.

A Tire Convention. Georgie discovers that Jim's annual tire convention trip isn't what he says it is. Meanwhile, Mandy has doubts about the strength of her marriage.

A House Divided. Audrey and Mary go to war over CeeCee and Georgie, and Mandy can't help but take sides.

Killer Asteroids, Oklahoma. A disappointing loss at the science fair sparks an existential crisis and sends Sheldon's life in a new direction.

Jiu-Jitsu, Bubble Wrap. When Sheldon is bullied by an unlikely character, Mary and George disagree on how to handle the situation.

A Mother, A Child. When Mary bans Sheldon from reading a mature comic book, Sheldon decides it's time to assert his independence from his mother.

Gluons, Guacamole. When Sheldon is no longer academically challenged at Medford High, he audits a college class taught by a professor.

The Psychic Vortex. Leonard is aghast to find out that Penny believes in psychics. Sheldon tries to assist Koothrappali in picking up a girl at a university party.

The Bozeman Reaction. A robbery of their apartment sees Leonard and Sheldon call on their friends to devise a security system.

The Einstein Approximation. Stuck on the solution to a physics problem, Sheldon tries different methods to change his thinking, including working at The Cheesecake Factory.

The Large Hadron Collision. When Leonard is offered a trip to Switzerland on Valentine's Day to see a particle accelerator, he must choose between taking Penny or Sheldon.

The Excelsior Acquisition. An appearance in traffic court comes at the worst possible time for Sheldon, the same day Stan Lee is appearing at the comic book store.

The Precious Fragmentation. The guys go to a garage sale and find a ring from the Lord of the Rings films, and the rare find threatens their friendship.

The Pants Alternative. Sheldon's fear of speaking in front of large groups threatens his ability to accept an award, so the gang tries to help him prepare for the big night.

The Wheaton Recurrence. Sheldon squares off at the bowling alley against nemesis Wil Wheaton. Leonard's miffed over Penny's response when he says, 'I love you.'.

In My Getting Married Era. Marissa worries how her resort employee fiancé will adapt to life in America. Ashia and Maxwell get a shocking decision about his visa.

Tell All Part 2. Liz and Villa delve into their lingering emotions, Kim grills Gino, and Diana makes a discovery that has her reconsidering her relationship with Colt.

Popping Popeye. Lisa fears the horn growing out of the back of her head could be cancer. Chuck has a Popeye-shaped bump on his arm, and two teen brothers have matching lumps.

Chris P's Journey. Chris fears he is failing his daughter as his weight gain begins to limit his mobility. Chris turns to his estranged mother to help get his life on track.

The Natalie A Episode. Returning to the boutique Natalie is terrified that after everything she's been through, she'll no longer love the dress she chose two years ago.

Showing Off Your Assets. Emily, who works at a nightclub, wants to look ultra-sexy on her big day. Her mother has more conservative requests - can Emily be convinced to tone it down?

Brides and Their Boys. Dana is taking her two bridesmen to her appointment, and Akisha her fiancé's best man. Can a male perspective during the process speed up a bride to say yes?

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.

A New Scoreboard. Georgie and Fagenbacher go head-to-head when Fagenbacher tries to sabotage Georgie's attempt to honour his dad.

Little Schmoozin'. Georgie's plan to get on the news sparks a feud between Mandy and a rival weathergirl. Meanwhile, Mandy tries to use the conflict to help her career.

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.

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.

Plum Nose. Brittney has hundreds of tiny bumps over her chest that have destroyed her confidence. John has a nose the size of a plum. Dr. Lee's friend drops in.

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.

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.

Sex, Lies And Helicopters. Late at night, Molly catches Carl coming out of Victoria's room, leaving her questioning whether or not she will tell Mike.

This Old Peggy. Mike wants Peggy to see a doctor after her bathtub falls through the ceiling.

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.

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.

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.

Better than the First. Bride Mackenzie knows exactly what she wants - a dress that makes her look like Jessica Rabbit. Will her consultant Britney find the perfect gown?

Race to the Altar. Bride Dawn is looking for a princess gown for her wedding, but no dress is living it up to her or her family's standards. Will her dress dream ever come true?

More than a Wedding. Cheryl and Krisin have recently beaten cancer and Jennifer is battling a kidney disease. For these brides, their weddings are a celebration of love and life.

Family Rules. Tanya takes her outspoken family to the salon to help her find a blush-coloured dress. But no one is as honest like a family - can the consultant keep the peace?

Teleshopping.

Teleshopping.

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.

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

Dolomite, Apple Slices. Sheldon makes a new friend who introduces him to a new field of science, while his parents disagree on how to handle Sheldon's blossoming social life.

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.

The Cornhusker Vortex. Hoping to fit in with Penny's football-loving friends, Leonard gets tutored in the sport by Sheldon. Raj is furious over the loss of his patang.

The Guitarist Amplification. Leonard and Penny's first big fight sees Sheldon playing mediator due to childhood trauma that means he can't be around loud verbal conflicts.

The Vengeance Formulation. Barry Kripke pranks Sheldon during his spot on NPR, leaving him wanting vengeance. Bernadette pressures Wolowitz to define their relationship.

The Gorilla Experiment. Penny seeks Sheldon's help to better comprehend Leonard's physics work. Wolowitz sees green when Leonard invites Bernadette to watch an experiment.

The Maternal Congruence. A Christmas visit from his mother has Leonard discovering she's kept a lot of news from him that she shares with Sheldon.

The Psychic Vortex. Leonard is aghast to find out that Penny believes in psychics. Sheldon tries to assist Koothrappali in picking up a girl at a university party.

The Bozeman Reaction. A robbery of their apartment sees Leonard and Sheldon call on their friends to devise a security system.

The Einstein Approximation. Stuck on the solution to a physics problem, Sheldon tries different methods to change his thinking, including working at The Cheesecake Factory.

The Large Hadron Collision. When Leonard is offered a trip to Switzerland on Valentine's Day to see a particle accelerator, he must choose between taking Penny or Sheldon.

The Excelsior Acquisition. An appearance in traffic court comes at the worst possible time for Sheldon, the same day Stan Lee is appearing at the comic book store.

The Precious Fragmentation. The guys go to a garage sale and find a ring from the Lord of the Rings films, and the rare find threatens their friendship.

The Pants Alternative. Sheldon's fear of speaking in front of large groups threatens his ability to accept an award, so the gang tries to help him prepare for the big night.

The Wheaton Recurrence. Sheldon squares off at the bowling alley against nemesis Wil Wheaton. Leonard's miffed over Penny's response when he says, 'I love you.'.

Splurges And Secrets. A financial windfall leads Georgie to make a questionable purchase. Meanwhile, Audrey and Jim butt heads over old secrets.

Funky Chili. Mandy and Jim butt heads when they take over the store for a sick Georgie and Ruben. Meanwhile, Audrey panics when Connor rekindles an old flame.

Dara Ó Briain introduces topical chat and hilarious games with two teams of top stand-up comedians as they look back over the week's news.

Dara Ó Briain is back with a summer run of topical chat and games featuring Rhys James, Ed Gamble, Laura Lexx, Sara Pascoe, Josh Pugh and Ahir Shah.

Dara Ó Briain introduces topical chat and hilarious games with two teams of top stand-up comedians as they look back over the week's news.

Norway. Roisin and Sara explore Bergen and Voss on a budget, dining at a Norwegian buffet, playing black metal and canoeing to find rubbish on a fjord.

Killer Asteroids, Oklahoma. A disappointing loss at the science fair sparks an existential crisis and sends Sheldon's life in a new direction.

Jiu-Jitsu, Bubble Wrap. When Sheldon is bullied by an unlikely character, Mary and George disagree on how to handle the situation.

A Mother, A Child. When Mary bans Sheldon from reading a mature comic book, Sheldon decides it's time to assert his independence from his mother.

Gluons, Guacamole. When Sheldon is no longer academically challenged at Medford High, he audits a college class taught by a professor.

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.

Father of the Bride. Bride Katie wants a mermaid style dress but her mom would prefer to see her in a traditional ballgown. Can consultant Jenny find a dress to please both?

Sisters Know Best. Broadway star Kristen Chenoweth is helping her best friend to find a gown with glitz and glam. Plus, two set of sisters can't agree on a dress style.

A Family Affair. Saralyn is in need of two dresses in order to share her wedding with her sister and Rachel brings her sister, a former Bachelor contestant, to help out.

You're Making Me Blush. Kara wants a red dress, but her future mother in-law has more traditional gown ideas. Sheena needs a colourful dress to wear to her Indian wedding reception.

Teleshopping.

Teleshopping.

A Tire Convention. Georgie discovers that Jim's annual tire convention trip isn't what he says it is. Meanwhile, Mandy has doubts about the strength of her marriage.

A House Divided. Audrey and Mary go to war over CeeCee and Georgie, and Mandy can't help but take sides.

Killer Asteroids, Oklahoma. A disappointing loss at the science fair sparks an existential crisis and sends Sheldon's life in a new direction.

Jiu-Jitsu, Bubble Wrap. When Sheldon is bullied by an unlikely character, Mary and George disagree on how to handle the situation.

A Mother, A Child. When Mary bans Sheldon from reading a mature comic book, Sheldon decides it's time to assert his independence from his mother.

Gluons, Guacamole. When Sheldon is no longer academically challenged at Medford High, he audits a college class taught by a professor.

The Psychic Vortex. Leonard is aghast to find out that Penny believes in psychics. Sheldon tries to assist Koothrappali in picking up a girl at a university party.

The Bozeman Reaction. A robbery of their apartment sees Leonard and Sheldon call on their friends to devise a security system.

The Einstein Approximation. Stuck on the solution to a physics problem, Sheldon tries different methods to change his thinking, including working at The Cheesecake Factory.

The Large Hadron Collision. When Leonard is offered a trip to Switzerland on Valentine's Day to see a particle accelerator, he must choose between taking Penny or Sheldon.

The Excelsior Acquisition. An appearance in traffic court comes at the worst possible time for Sheldon, the same day Stan Lee is appearing at the comic book store.

The Precious Fragmentation. The guys go to a garage sale and find a ring from the Lord of the Rings films, and the rare find threatens their friendship.

The Pants Alternative. Sheldon's fear of speaking in front of large groups threatens his ability to accept an award, so the gang tries to help him prepare for the big night.

The Wheaton Recurrence. Sheldon squares off at the bowling alley against nemesis Wil Wheaton. Leonard's miffed over Penny's response when he says, 'I love you.'.

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.

A Dog, A Squirrel. A heated argument erupts between the Coopers and their neighbours when a new dog terrorises Sheldon.

Summer Sausage, Pocket Poncho. While Sheldon is obsesses over Meemaw's budding relationship with his mentor, Dr. Sturgis, George and Mary attempt to bond with their other kids.

Ice Cream, Gentlemen Callers. When Meemaw is pursued by two gentlemen callers, Sheldon interferes, forcing her to set some ground rules.

A High-Pitched Buzz. Sheldon dismantles the refrigerator to stop an annoying hum and then must get a paper route to pay for the repairs.

The Spaghetti Catalysis. Following Leonard and Penny's break up, Sheldon tries to hide from Leonard and the gang that he had a friendly spaghetti dinner at Penny's.

The Plimpton Stimulation. Sheldon hosts a visiting female physicist, but her intelligence seems matched by her libido.

The Staircase Implementation. A squabble over the thermostat setting leads to Leonard going over to Penny's and recounting the story of how he met and moved in with Sheldon.

The Lunar Excitation. Howard and Raj set Sheldon up on an Internet dating site. Penny discovers that she can't go back to dating dumb jocks after dating Leonard.

The Robotic Manipulation. Howard uses a robotic arm for his own pleasure. Sheldon goes on a date with Amy Farrah Fowler, and Penny finds herself accompanying them.

Cruciferous Veg Amplification. Sheldon calculates that he'll be dead before technology exists to download his consciousness into a robot, so he goes on a healthy-living binge.

The Zazzy Substitution. Sheldon breaks up with Amy Farrah Fowler, and the guys worry when he starts replacing her with cats.

The Hot Troll Deviation. Wolowitz is embarrassed when a secret of his is revealed, and Sheldon and Raj battle at work.

Dara Ó Briain introduces topical chat and hilarious games with two teams of top stand-up comedians as they look back over the week's news.

After two top figure skaters' glittering rivalry gets them banned from the sport, they're forced to team up as a pair to get back into competition.

Eight Is Enough. Molly gets accepted into an elite eight-week writer's workshop in Iowa but faces a big decision when Mike asks her not to go.

she's getting published and scored a big book advance.

Scared Cyst-less. Dr. Sandra Lee treats Taylore, a young woman with unsightly elf-like bumps on her ears. Jose never goes out because of the baseball-sized lump on his head.

Krystal S' Journey. Krystal S. wants to marry the man of her dreams, but she won't do it until she can be sure that she won't force him into the role of caretaker.

Mom's Day, Mom's Way. 50-year-old bride Dina is looking for a dress as sassy as she is. Bride Laure wants a simple lace dress, but her entourage has a different taste.

Day of Challenges. Stefanie wants a simple dress, but her family has grander ideas. Precious just had weight loss surgery and is looking for a gown that fits her shrinking frame.

Not What I Had in Mind. Broadway dancer LaQuet is looking for a fun gown with straps to cover her bulky arms. Jill puts her in a dress with straps, but the dress is too matronly.

Not What I Was Expecting. Emily is an attorney by day and a rock star by night. She wants to contrast her normal all-black style with a traditional, long-sleeved, lace wedding gown.

Teleshopping.

Teleshopping.

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.

A Dog, A Squirrel. A heated argument erupts between the Coopers and their neighbours when a new dog terrorises Sheldon.

Summer Sausage, Pocket Poncho. While Sheldon is obsesses over Meemaw's budding relationship with his mentor, Dr. Sturgis, George and Mary attempt to bond with their other kids.

Ice Cream, Gentlemen Callers. When Meemaw is pursued by two gentlemen callers, Sheldon interferes, forcing her to set some ground rules.

A High-Pitched Buzz. Sheldon dismantles the refrigerator to stop an annoying hum and then must get a paper route to pay for the repairs.

The Spaghetti Catalysis. Following Leonard and Penny's break up, Sheldon tries to hide from Leonard and the gang that he had a friendly spaghetti dinner at Penny's.

The Plimpton Stimulation. Sheldon hosts a visiting female physicist, but her intelligence seems matched by her libido.

The Staircase Implementation. A squabble over the thermostat setting leads to Leonard going over to Penny's and recounting the story of how he met and moved in with Sheldon.

The Lunar Excitation. Howard and Raj set Sheldon up on an Internet dating site. Penny discovers that she can't go back to dating dumb jocks after dating Leonard.

The Robotic Manipulation. Howard uses a robotic arm for his own pleasure. Sheldon goes on a date with Amy Farrah Fowler, and Penny finds herself accompanying them.

Cruciferous Veg Amplification. Sheldon calculates that he'll be dead before technology exists to download his consciousness into a robot, so he goes on a healthy-living binge.

The Zazzy Substitution. Sheldon breaks up with Amy Farrah Fowler, and the guys worry when he starts replacing her with cats.

The Hot Troll Deviation. Wolowitz is embarrassed when a secret of his is revealed, and Sheldon and Raj battle at work.

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.

A Rival Prodigy. When Dr. Sturgis bonds with Paige, another 10-year-old genius, Sheldon gets jealous. Meanwhile, Mary invites Paige's family over for a play date.

A Crisis Of Faith. When Mary's faith is shaken by a tragedy in the community, Sheldon becomes an unlikely ally.

A Financial Secret. When George Sr. asks Sheldon to keep a secret from Mary, the stress of not being honest drives Sheldon to hide out at Tam's for his first sleepover.

A Research Study. Dr. Sturgis recommends Sheldon and Missy for a university research study on twins, and Mary is unhappy when the test results go to Sheldon's head.

The Desperation Emanation. Sheldon meets Amy's mum and comes to the realisation he no longer wants to see Amy, and Leonard realises everyone is in a relationship except for him.

The Irish Pub Formulation. When Raj's sister has a one-day layover, he forbids the others from hooking up with her, unaware she and Leonard already did long ago.

The Apology Insufficiency. The rest of the gang is interviewed by the FBI for Wolowitz's security clearance, with Sheldon accidentally letting slip some damaging information.

The 21-Second Excitation. The guys camp out to see a print of Raiders of the Lost Ark with 21 extra seconds and are outraged to see Wil Wheaton and his friends skip the line.

The Boyfriend Complexity. Penny asks Leonard to lie to her visiting father, while Howard, Raj and Bernadette spend all night looking through a telescope.

The Alien Parasite Hypothesis. Amy crushes on one of Penny's dim ex-boyfriends, Zack. Raj and Wolowitz argue over who'd be the better superhero.

Justice League Recombination. The guys get Zack and Penny to join their Justice League costume for a New Year's Eve bash at the comic book store.

The Bus Pants Utilization. Their friendship becomes strained when Sheldon tries to take over Leonard's creation of a smartphone application that solves differential equations.

Nobody's Butt Monkey. Amy moves ahead with wedding details, sans Tammy. Chris and Misty worry about Amy's health. Andrea attempts to broker peace between Tammy and Amy.

Idle Hands Are a Devil's B****. After peace talks between Tammy and Amy go south, the sisters are more divided than ever. Amy and Brian try pre-marital counselling.