Leonard, Sheldon and Wolowitz celebrate the successful completion of their top-secret military project, until an unpleasant surprise leaves their heads spinning. Amy considers an offer of a summer position as a visiting researcher.
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Season 11 begins with Amy giving Sheldon an answer to his marriage proposal. Meanwhile, Howard and Bernadette struggle with some unexpected news.
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Leonard angers the university and the entire physics community when he gives an embarrassing radio interview. Meanwhile, Amy and Bernadette bond over having to hide their success from Sheldon and Howard.
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Amy records Sheldon talking in his sleep and tries to convince him that he has a more laid-back side. Meanwhile, Raj and Stuart compete to win the heart of Bernadette's new co-worker.
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Wolowitz and Sheldon bond over their relationships with their disappointing fathers when they drive to the desert to shoot off a model rocket. Leonard's mom finds a new best friend in Penny, much to Leonard's dismay.
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Sheldon and Raj confide in Bernadette when they can't handle Amy and Howard working together. Penny and Leonard learn new tactics on how to deal with Sheldon and they come from an unlikely source.
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Sheldon goes head-to-head with Wil Wheaton for the role of the new Professor Proton. Penny steps in and takes care of Halley when Bernadette and Howard both wind up on bed rest.
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To discover who would be most qualified to be best man and maid of honor at their wedding, Sheldon and Amy subject their friends to a series of secret experiments. Also, Penny reveals her true feelings about Amy.
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When Sheldon kicks Amy out to work solo, she and Leonard bond during a series of science experiments. Bert replaces Howard in the band Footprints on the Moon, and Sheldon finds Penny a surprising source of scientific inspiration.
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Sheldon petitions Wil Wheaton to appear on the new "Professor Proton Show", but Wil offers a role to Amy instead. Penny gets angry when she thinks the female protagonist in Leonard's novel is based on her.
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When Bernadette won't go in labor, all her friends try different tactics to get things started. Howard confronts Bernadette after Amy accidentally reveals she's already chosen their son's name.
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Leonard jumps through hoops to help secure the perfect wedding venue for Sheldon and Amy. Bernadette and Howard have a hard time deciding who should stay home with the kids and who should go back to work.
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Penny gets the opportunity to host Bill Gates at work when his company wants to partner with her pharmaceutical firm. Leonard, Raj, and Howard do everything they can to meet him, and Sheldon thinks he is the victim of an April Fools prank.
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When Leonard learns Sheldon is the president of the tenants association, he decides to run against him. Bernadette encourages Howard and Raj to find the owner of a drone after they find it in the backyard.
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About
Leonard and Sheldon are brilliant physicists, the kind of ''beautiful minds'' that understand how the universe works. But none of that genius helps them interact with people, especially women. All this begins to change when a free-spirited beauty named Penny moves in next door.
