Episodes
Penny ends up tagging along on Sheldon's first ever date with Amy, while Howard finds an unusual use for a robotic arm.
When Sheldon calculates the technology to download his consciousness into a robot won't be invented soon enough, he ...read more When Sheldon calculates the technology to download his consciousness into a robot won't be invented soon enough, he desperately tries to find a way to increase his lifespan. show less
Following his 'breakup' with Amy, the gang become concerned with Sheldon's obsessive search for non-human ...read more Following his 'breakup' with Amy, the gang become concerned with Sheldon's obsessive search for non-human companionship and call his mother to intervene. show less
Howard tries to get Penny's help in winning back Bernadette, but first has to confess the embarrassing reason why they broke ...read more Howard tries to get Penny's help in winning back Bernadette, but first has to confess the embarrassing reason why they broke up in the first place. Raj and Sheldon clash over a desk. show less
Sheldon is scared that he is in a relationship when Amy asks him to meet her mother, and Leonard asks Howard and Bernadette to ...read more Sheldon is scared that he is in a relationship when Amy asks him to meet her mother, and Leonard asks Howard and Bernadette to set him up because he is the only person in the group without a girlfriend. show less
Leonard tries to keep everyone from finding out that he spent the night with Raj's sister, but Sheldon finds out and ...read more Leonard tries to keep everyone from finding out that he spent the night with Raj's sister, but Sheldon finds out and concocts an elaborate story to help him keep the secret from Raj. show less
An FBI agent interviews the guys when Howard needs to obtain a security clearance.
The guys camp out all night waiting to see an extended cut of Indiana Jones, while Amy joins in on girls' night with Penny ...read more The guys camp out all night waiting to see an extended cut of Indiana Jones, while Amy joins in on girls' night with Penny and Bernadette. show less
Penny asks Leonard to pose as her boyfriend when her father visits. Howard, Raj and Bernadette have an awkward encounter when ...read more Penny asks Leonard to pose as her boyfriend when her father visits. Howard, Raj and Bernadette have an awkward encounter when they spend the evening together. show less
Amy finds she has sexual feelings for Penny's ex-boyfriend Zack, while Raj and Howard try to prove who would be the better ...read more Amy finds she has sexual feelings for Penny's ex-boyfriend Zack, while Raj and Howard try to prove who would be the better superhero. show less
The guys enter a costume contest as members of the Justice League and convince Penny and Zack to join them.
Leonard has an idea for a new smartphone app and asks the guys for help, however Sheldon tries to take over the project, and ...read more Leonard has an idea for a new smartphone app and asks the guys for help, however Sheldon tries to take over the project, and Leonard fires him. show less
Chaos ensues when the gang spend the weekend together at a science convention.
To improve his skills as an instructor, Sheldon asks Penny to give him acting lessons. Meanwhile, Raj begins having impure ...read more To improve his skills as an instructor, Sheldon asks Penny to give him acting lessons. Meanwhile, Raj begins having impure fantasies about Bernadette. show less
To secure needed funding for the university, Sheldon convinces Leonard to get friendly with a wealthy benefactor.
Bernadette makes Howard choose between herself and his mother, while Penny and Raj become upset when Priya returns to town and ...read more Bernadette makes Howard choose between herself and his mother, while Penny and Raj become upset when Priya returns to town and resumes her relationship with Leonard. show less
Sheldon becomes concerned when everybody begins to hang out at Raj's apartment and discovers Leonard is the center of the ...read more Sheldon becomes concerned when everybody begins to hang out at Raj's apartment and discovers Leonard is the center of the group. show less
Priya forces Leonard to choose between a relationship with her or a friendship with Penny. A magic trick by Howard has Sheldon ...read more Priya forces Leonard to choose between a relationship with her or a friendship with Penny. A magic trick by Howard has Sheldon fooled. show less
The guys go all out to help Sheldon find the person responsible for hacking his online gaming account, while the girls' ...read more The guys go all out to help Sheldon find the person responsible for hacking his online gaming account, while the girls' hatred for Priya increases. show less
Sheldon and Amy secretly experiment on the gang by spreading rumors when they hear that Bernadette is thinking about breaking up ...read more Sheldon and Amy secretly experiment on the gang by spreading rumors when they hear that Bernadette is thinking about breaking up with Howard. show less
When Priya finds a loophole in the roommate agreement to throw Sheldon out for the night, Penny, Amy and Bernadette take him to ...read more When Priya finds a loophole in the roommate agreement to throw Sheldon out for the night, Penny, Amy and Bernadette take him to a nightclub. show less
Sheldon invents a three-player chess game, Penny and Amy use Bernadette to spy on Leonard and Priya, and Raj tries a new drug to ...read more Sheldon invents a three-player chess game, Penny and Amy use Bernadette to spy on Leonard and Priya, and Raj tries a new drug to treat his social anxiety. show less
Howard believes that his mom suffered a heart attack because he told her that he's marrying Bernadette, Sheldon freaks out ...read more Howard believes that his mom suffered a heart attack because he told her that he's marrying Bernadette, Sheldon freaks out over germs, and Penny and Priya bond. show less
Raj moves in with Sheldon after hearing Leonard and Priya engage in a Star Trek fantasy in his apartment. Bernadette receives ...read more Raj moves in with Sheldon after hearing Leonard and Priya engage in a Star Trek fantasy in his apartment. Bernadette receives her doctorate. show less