'Big Bang Theory': Leonard Revisits His Tortured Youth (Exclusive Video)

On tonight's Big Bang Theory, Leonard (Johnny Galecki) takes a stroll down unhappy memory lane when he's visited by his old high school bully, Jimmy (The Comeback's Lance Barber).

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In a clip exclusive to The Hollywood Reporter, Sheldon (Jim Parsons) attempts to help Leonard figure out just what Jimmy could possibly want -- by listing some of the ways in which he was tormented in high school as Penny (Kaley Cuoco) proposes a funny way in which the gang could spend New Year's Eve.

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The Big Bang Theory's "The Speckerman Recurrence" airs tonight at 8 p.m. and returns from its holiday hiatus on Jan. 12.

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