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Raj puts together a scientific scavenger hunt that turns into serious, cutthroat competition that brings out the best - and the worst - in the gang.

Amy ruins one of Sheldon's favourite films. Leonard discovers how to get Penny to do his bidding. Raj and Stuart get creative with dating profiles.

Amy takes a job at Sheldon's university, putting their relationship to the test. Howard ends up sleeping on Raj's couch after a fight with Bernadette.

Sheldon fears his major scientific breakthrough may haunt him for the rest of his career. Howard makes a grand romantic gesture to Bernadette.

When Sheldon's childhood hero, Professor Proton, seeks Leonard's help with an experiment, Sheldon decides to befriend another TV science guy.

Leonard fails to stop Sheldon from overreacting after a past slight comes to light, and Penny has a run-in with Raj's former girlfriend Lucy.

Howard's mother has a say when he and Bernadette host Thanksgiving dinner for the gang. Penny and Leonard must deal with a mistake from her past.

Amy and Leonard try to help Sheldon when his accidental scientific discovery is disproved. Howard and Bernadette open their home to Raj for a week.

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

Taking a badly reviewed train to see the summer solstice celebrations, Roisin and Sara try graffiti, walk over hot coals and arm wrestle some locals.

Shakisaha split her left earlobe after stretching it with gauges. Mike is a tough guy with a soft bump on his head and Dania's rhinophyma kept her from enjoying life.

Ed wants his stomach lump removed before his girlfriend gets out of prison. And, James has a large, squishy lump on his forehead.

Former cruise ship worker Julie hopes Dr. Lee can remove her large back growth. And, JD is a gentle giant with a pear-shaped mass hanging off his ear.

Single mum Leneatha works incredibly hard at the hospital. However, her dangerous eating addiction is putting her life at risk, can Dr. Now help save her life.

Violet wants a tight and sexy gown to wear at her Dominican Republic wedding, fussy Rachel hopes Kleinfeld's will be her last stop and Leighann has high standards.

Requests Like None of the Rest. Amanda is looking for a dress with sparkles, glitter, smoke and mirrors, Charae wants an 80s dress and Lynsey is looking for a short, fun party dress.

Comora hunts for a glam gown with the help of a celebrity consultant and Randy tries to find two dresses to satisfy a statuesque blond with expensive taste.

Norah is shopping with her family, but will they be a help or a hindrance? Plus, the consultants search for a gown for a bride with a fashion forward entourage.

When Mike falls ill during a night out with Molly at the opera, Mike's mum and Molly clash over who can take better care of him.

When Vince tries to strike up a friendship with Mike by inviting him to a big basketball game, Molly isn't pleased with their newfound bond.

Molly is surprised when Mike's mum asks her to take care of her dog. Mike shocks Molly when he talks about being buried next to her.

After Dr. Sturgis experiences a nervous breakdown, Mary worries Sheldon is headed down a similar path. Georgie finds he has a knack for sales.

Without Dr. Sturgis's university class, Sheldon takes his education into his own hands. Mary helps Pastor Jeff avoid temptation with his girlfriend.

Sheldon leaves town after a fight with Meemaw and his parents. Meanwhile, Georgie tries to impress Veronica with his new business venture.

Raj puts together a scientific scavenger hunt that turns into serious, cutthroat competition that brings out the best - and the worst - in the gang.

Amy ruins one of Sheldon's favourite films. Leonard discovers how to get Penny to do his bidding. Raj and Stuart get creative with dating profiles.

Amy takes a job at Sheldon's university, putting their relationship to the test. Howard ends up sleeping on Raj's couch after a fight with Bernadette.

Sheldon fears his major scientific breakthrough may haunt him for the rest of his career. Howard makes a grand romantic gesture to Bernadette.

When Sheldon's childhood hero, Professor Proton, seeks Leonard's help with an experiment, Sheldon decides to befriend another TV science guy.

Leonard fails to stop Sheldon from overreacting after a past slight comes to light, and Penny has a run-in with Raj's former girlfriend Lucy.

Howard's mother has a say when he and Bernadette host Thanksgiving dinner for the gang. Penny and Leonard must deal with a mistake from her past.

Amy and Leonard try to help Sheldon when his accidental scientific discovery is disproved. Howard and Bernadette open their home to Raj for a week.

Joyce & Vince, Peaches & Herb. When Mike decides that the couch is his new best friend and he doesn't want to leave the house anymore, Molly goes out on the town with her sister.

The bromance is in jeopardy! Mike and Carl get on each other's nerves after working too many double shifts together during a snowstorm.

Mike and Carl's annual pilgrimage to the Chicago Cubs' Opening Day is interrupted when Molly comes along.

Sheldon's obsession with The Lord of the Rings leads to an unhealthy habit. Missy asks her dad to teach her how to play catch.

After being released from the psychiatric hospital, Dr. Sturgis unexpectedly breaks up with Meemaw.

A Parasol And A Hell Of An Arm. A church carnival leads Missy to try out for the baseball team. Meanwhile, Meemaw struggles after her breakup with Dr. Sturgis.

With Sheldon in Texas, the gang decorates for Christmas, and they each contemplate if they would have had a wonderful life if they'd never met him.

Penny turns to Leonard after her guest appearance doesn't turn out well. Sheldon works on his sense of humour, and Raj practices talking to girls.

Penny makes a big step toward pursuing a full-time acting career, and Sheldon is forced to take a vacation.

Unable to score tickets for Comic-Con, Sheldon decides to stage his own comic-book convention, while the ladies attempt to act like grown-ups.

Amy talks Sheldon into a romantic Valentine's Day getaway to Napa Valley. Leonard and Penny make an emergency visit to the vet with Raj's dog.

Leonard's purchase of a new dining room table doesn't sit well with Sheldon, and Bernadette isn't happy about Howard taking another trip to space.

Things turn rocky between Sheldon and Wolowitz, and Bernadette steps in to mediate. Penny is offered a movie role that may prove embarrassing.

Sheldon's visit to see his mummy forces him to start addressing a new reality. The gang speculate about where they might be in 20 years.

Janelle meets up with Meri to discuss her spiritual release. Kody gives a final apology to Robyn and asks for forgiveness. Meri and Ron go to Zion.

Part 1. The Brown family sits down and discusses their last meeting at Coyote Pass. Kody and Janelle argue over who was responsible for the 'Backdoor Deal.

Stephen's large, bulbous nose gets him unwanted attention, and he hopes Dr. Lee can help. Plus, Veronica wants to be free of the bump on her butt crack.

Brittany has been called a monster due to a genetic condition that causes head-to-toe bumps. Tamyra has skin so thick she shaves the bottom of her feet for relief.

Jaclyn has a lump on the back of her head that causes her emotional distress. Shane has a growth between his eyes that could put him in danger at his electrician job.

At nearly 1,000-lbs, Samantha is dangerously close to dying. To make matters worse, she makes her income from filming herself eating for online videos.

Porsha is obsessed with turtlenecks. Can she find a dress to match her signature style? Plus Randy hunts for a unique runway sample for a bride with a huge budget.

Jackie is a model who has worn many bridal gowns throughout her career. Can she find the perfect dress for her big day? Plus, Alia returns for her final fitting.

Dale has been waiting 30 years for her dream wedding. But will she opt for a traditional white gown or a black dress? And can Rachael find a princess dress.

Same sex couple Meighan and Christina are looking for gowns that are individually flattering but complement each other. Will they both find their dream dress.

Joyce & Vince, Peaches & Herb. When Mike decides that the couch is his new best friend and he doesn't want to leave the house anymore, Molly goes out on the town with her sister.

The bromance is in jeopardy! Mike and Carl get on each other's nerves after working too many double shifts together during a snowstorm.

Mike and Carl's annual pilgrimage to the Chicago Cubs' Opening Day is interrupted when Molly comes along.

Sheldon's obsession with The Lord of the Rings leads to an unhealthy habit. Missy asks her dad to teach her how to play catch.

After being released from the psychiatric hospital, Dr. Sturgis unexpectedly breaks up with Meemaw.

A Parasol And A Hell Of An Arm. A church carnival leads Missy to try out for the baseball team. Meanwhile, Meemaw struggles after her breakup with Dr. Sturgis.

With Sheldon in Texas, the gang decorates for Christmas, and they each contemplate if they would have had a wonderful life if they'd never met him.

Penny turns to Leonard after her guest appearance doesn't turn out well. Sheldon works on his sense of humour, and Raj practices talking to girls.

Penny makes a big step toward pursuing a full-time acting career, and Sheldon is forced to take a vacation.

Unable to score tickets for Comic-Con, Sheldon decides to stage his own comic-book convention, while the ladies attempt to act like grown-ups.

Amy talks Sheldon into a romantic Valentine's Day getaway to Napa Valley. Leonard and Penny make an emergency visit to the vet with Raj's dog.

Leonard's purchase of a new dining room table doesn't sit well with Sheldon, and Bernadette isn't happy about Howard taking another trip to space.

Things turn rocky between Sheldon and Wolowitz, and Bernadette steps in to mediate. Penny is offered a movie role that may prove embarrassing.

Sheldon's visit to see his mummy forces him to start addressing a new reality. The gang speculate about where they might be in 20 years.

When Samuel loses his job and apartment, Mike offers to let him stay at his place - with interesting results.

When Joyce invites Vince to attend her high school reunion, he confesses to Mike that he never graduated high school.

Victoria panics as her 30th birthday approaches - and drags Mike and Molly into the drama of her life crisis.

Sheldon starts the first internet flame war, and Meemaw is unhappy when George spends time with her new boyfriend.

The university tries to recruit Sheldon, through George. Georgie gets a job working for Meemaw's new boyfriend. Mary decides to rid her home of greed.

Mary gets Pastor Jeff involved when Sheldon isn't invited to Billy's birthday party. George, meanwhile, has 'male-bonding time' with Dr. Sturgis.

Raj wrestles with dating two women at the same time, Penny is offered a part in a trashy movie, and Sheldon can't decide between two gaming systems.

Raj and Howard double-date, and the latter is flushed with embarrassment after Raj's girlfriend reveals a secret she knows about Howard.

Leonard reinstates Anything Can Happen Thursday, and Sheldon attempts something spontaneous. Raj requests help from Howard in prepping for a date.

Sheldon receives counselling from his childhood TV idol, while Penny and Leonard reach a relationship milestone and turn it into a competition.

A trying day at the movie shoot makes Penny question her life choices. Caring for a bedridden Mrs. Wolowitz is a challenge for Howard and Bernadette.

Sheldon gets caught up in all the life-altering changes going on around him and considers a monumental move. Raj and Emily take it to the next level.

Amy and Leonard take a road trip, Penny has an interview at Bernadette's company, and Howard has issues with Stuart's relationship with his mum.

Howard signs up to take Sheldon's class, and tensions between Penny and Bernadette give Amy an opportunity to play one against the other.

Dr. Lee meets with Tobi, who has symmetrical bumps around her spine. Later, Dr. Tomassian learns how to remove a huge, floppy arm bump.

Jack fainted during a previous attempt to remove his throat bump. Can Dr. Lee help this time? Plus, Dr. Tomassian reconstructs Victoria's earlobes.