Sheldon's comic book store experience changes when writer Neil Gaiman puts Stuart's store on the map. Raj takes credit for Penny's astronomical discovery, and friendships are threatened.
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Sheldon goes to Vegas to win money for science. Penny and Bernadette take Amy wedding dress shopping, but her terrible choice entangles them in a web of lies.
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When Sheldon learns that his mother won't attend his wedding unless he invites his brother, George, he and Leonard travel to Texas to end a family feud. The Wolowitz kids inadvertently infest Amy, Bernadette, Howard and Raj with pinkeye.
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The Season 11 finale: When Amy's parents and Sheldon's family arrive for the wedding, everybody is focused on making sure all goes according to plan--everyone except the bride and groom.
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Sheldon won't tell anyone why he's never mentioned Tam, his childhood best friend, so Leonard takes matters into his own hands. Bernadette and Penny take out Raj's fiance, Anu, for dinner to get the skinny on her.
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Sheldon and Amy are devastated learning from a Russian paper that Super Asymmetry has been discovered and disproven. Ultra-competitive Bernadette asks Stuart's girlfriend, Denise, to teach her how to beat Howard in a popular videogame.
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Sheldon and Amy are still down about their theory being disproven, but a VHS tape from Sheldon's past inspires him not to give up. Bernadette turns into a pageant mom when she tries to help Howard ace his Magic Castle audition.
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Penny and Leonard organize a paintball game that results in mayhem when Sheldon is jealous of Amy. Raj catches Anu with her ex-boyfriend, and Stuart doesn't want to move in with Denise.
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Penny's ex-boyfriend, 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-fiancee, Anu.
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Sheldon and Amy's super asymmetry theory is proven by two physicists, Dr. Pemberton and Dr. Campbell from Chicago, who then try to kick Amy off the Nobel nomination. Bernadette has a big success at work and Penny's going to be a part of it.
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