The Big Bang Theory The Hofstadter Isotope Season 2 Episode 20 - fanaru

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2x20 The Hofstadter Isotope Episode Summary
Aired: Monday April 13, 2009
A fellow comic book enthusiast's hitting on Penny leads to Leonard and Howard going to a bar's Ladies' Night.

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2x19 The Dead Hooker Juxtaposition
Mar 30, 2009

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2x21 The Vegas Renormalization
Apr 27, 2009

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