Watch TV The Big Bang Theory Season 3 Episode 15 on Watch123movies

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The Big Bang Theory Season 3 Episode 15

When Leonard must travel to Switzerland on Valentine's Day to visit the CERN laboratory, Sheldon uses any and all means to be his guest instead of Penny.

Starring:

Jim Parsons, Johnny Galecki, Kaley Cuoco, Simon Helberg

Genre:

Comedy

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