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  • The Big Bang Theory Season 2 Episode20 | VIP SERVER 1
  • The Big Bang Theory Season 2 Episode20 | VIP SERVER 2
 

The Hofstadter Isotope



A fellow comic book enthusiast’s hitting on Penny leads to Leonard and Howard going to a bar’s Ladies’ Night.

The Big Bang Theory Season 2 Episode 20
Apr. 13, 2009