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Looking to watch The Big Bang Theory Season 2 Episode 12 online? TV Fanatic is your destination for every paid and free streaming option of the The Big Bang Theory S2E12 full episode from 2 affiliates.

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Episode Details

The Big Bang Theory Season 2 Episode 12: "The Killer Robot Instability"

When Penny's comments about Wolowitz's love life sends him into depression, the boys are about to lose their most important teammate in an upcoming robot fighting competition.