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Penny asks Leonard to lie to her father (Keith Carradine); Howard, Raj and Bernadette pull an all-nighter at a telescope.
Penny asks Leonard to lie to her father (Keith Carradine); Howard, Raj and Bernadette pull an all-nighter at a telescope.
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S2, EP20 "The Hofstadter Isotope"Wolowitz and Leonard decide to check out a local bar on Ladies' Night.
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S4, EP21 "The Agreement Dissection"Priya dissects the roommate agreement; the ladies take Sheldon dancing.
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S1, EP2 "The Big Bran Hypothesis"Leonard volunteers to sign for a package, hoping to make a good impression on Penny.
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S10, EP24 "The Long Distance Dissonance"The gang is concerned when Sheldon's former admirer, Dr. Ramona Nowitzki, resurfaces while Amy is away at Princeton.
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S10, EP23 "The Gyroscopic Collapse"After celebrating the completion of the top-secret Air Force project, Leonard, Sheldon and Wolowitz get an unwelcome surprise; Amy receives an offer for a summer position as a visiting researcher.
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S10, EP22 "The Cognition Regeneration"Leonard is less than thrilled when Penny considers accepting a job offer from Zack, her ex-boyfriend.
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S10, EP21 "The Separation Agitation"Howard and Bernadette struggle to leave Halley in day care; Bert introduces the gang to his new girlfriend, Rebecca.
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S10, EP20 "The Recollection Dissipation"Sheldon pushes himself to the limit when he collaborates on projects with Leonard and Wolowitz as well as Amy on the same day; Bernadette nears the end of her maternity leave and must return to work.
