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S04E18

The Prestidigitation Approximation

• 20:00 • CBS

• 2011-03-10

The Prestidigitation Approximation (S04E18) is the eighteenth episode of season four of "The Bi... More The Prestidigitation Approximation (S04E18) is the eighteenth episode of season four of "The Big Bang Theory" released on Thu Mar 10, 2011. The Big Bang Theory stars and .

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