Watch S5, EP13: The Recombination Hypothesis with Fubo for $0 Today
Everything could change when Leonard spontaneously invites Penny to a romantic dinner.
Everything could change when Leonard spontaneously invites Penny to a romantic dinner.
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The Big Bang Theory
S4, EP14 "The Thespian Catalyst"Sheldon takes acting lessons from Penny in hope of becoming a better teacher; Koothrappali fantasizes about his friend's girlfriend.
The Big Bang Theory
S4, EP15 "The Benefactor Factor"A wealthy donor makes Leonard question what he is willing to do for science.
The Big Bang Theory
S4, EP16 "The Cohabitation Formulation"Wolowitz considers taking things with Bernadette to the next level; Leonard and Raj's sister rekindle their relationship.
The Big Bang Theory
S4, EP17 "The Toast Derivation"Sheldon is upset when he realizes Leonard is the center of their group of friends.
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