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Looking to watch The Big Bang Theory Season 4 Episode 18 online? TV Fanatic is your destination for every paid and free streaming option of the The Big Bang Theory S4E18 full episode from 2 affiliates.

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Episode Details

The Big Bang Theory Season 4 Episode 18: "The Prestidigitation Approximation"

Wolowitz baffles Sheldon this week with a magic trick. Elsewhere, Leonard realizes that there's a problem with him dating Priya.