Season 4, Episode 11 The Justice League Recombination

First Aired: December 16, 2010

The guys borrow Penny's new boyfriend when they enter a costume contest as members of the Justice League.

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  • Premiered: September 24, 2007
  • Rating: TV-PG
  • Premise: Two nerdy physicists share an apartment and an unlikely friendship with their beautiful neighbor with whom one of them is infatuated. Like the universe after the big bang, the show's popularity expanded, thanks to breakout star Jim Parsons, along with the… (more)

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