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Sheldon and the gang are confused when a young grad student is attracted to him.
Sheldon and the gang are confused when a young grad student is attracted to him.
More episodes
The Big Bang Theory
S2, EP23 "The Monopolar Expedition"While Leonard prepares for a three-month science expedition, he and Penny re-evaluate their feelings for each other.
The Big Bang Theory
S3, EP1 "The Electric Can Opener Fluctuation"After tampering with Sheldon's Arctic-expedition data, the guys follow him back to Texas, which threatens Leonard's chances for romance with Penny.
The Big Bang Theory
S3, EP2 "The Jiminy Conjecture"Penny and Leonard try to recover from an awkward hookup; Howard and Sheldon make a high-stakes bet.
The Big Bang Theory
S3, EP3 "The Gothowitz Deviation"Howard and Raj hit a Goth nightclub to meet women; Sheldon tries chocolate-based behavior modification on Penny.
The Big Bang Theory
S5, EP9 "The Ornithophobia Diffusion"Leonard and Penny spend time alone; Sheldon tries to face his fear of birds.
The Big Bang Theory
S5, EP8 "The Isolation Permutation"Amy is devastated when Penny and Bernadette shop for wedding dresses without her.
The Big Bang Theory
S5, EP7 "The Good Guy Fluctuation"An attractive comic book artist tests Leonard and Priya's relationship; Sheldon tries to scare his friends.
The Big Bang Theory
S5, EP6 "The Rhinitis Revelation"Sheldon finds himself competing with the gang for his mother's (Laurie Metcalf) attention when she visits.
