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The Big Bang Theory S03E15

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The Big Bang Theory : The Large Hadron Collision

S03, E15 ()

Leonard must choose who to bring with him when he goes to see the Large Hadron Collider on Valentine's Day.

TV-PG  (D, L)

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Previous Episode

The Einstein Approximation

S03, E14 (First Aired: February 1, 2010)

Sheldon tries to figure out the answer to a physics problem by working with Penny.

Next Episode

The Excelsior Acquisition

S03, E16 (First Aired: March 1, 2010)

Sheldon ends up in traffic court after getting a ticket because of Penny.