The Big Bang Theory 2007 | TV Show Watchlist

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Two nerdy physicists share an apartment and an unlikely friendship with their beautiful neighbor with whom one of them is infatuated.

Premiered: September 24, 2007

Rating: TV-PG

User Rating:4.58 out of 5 (8,996 ratings)

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Season 2, Episode 21 The Vegas Renormalization

First Aired: April 27, 2009

Leonard, Koothrappali and Wolowitz go to Las Vegas, and Sheldon is locked out of the apartment, leaving him no choice but to stay with Penny.

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