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The Big Bang Theory S6E18 poster

Watch The Big Bang Theory – Season 6 Episode 18: The Contractual Obligation Implementation

The Big Bang Theory • Season 6, Episode 18 • 20 min • 2007 • ⭐ 7.9/10 • Comedy

Cast: Jim Parsons , Kaley Cuoco , Johnny Galecki , Simon Helberg , Kunal Nayyar , Melissa Rauch , Mayim Bialik

Directors: Chuck Lorre , Bill Prady

Watch The Big Bang Theory – S6E18

Episode Overview

Leonard, Sheldon and Howard give lectures on science to junior high students. The girls ditch work to go to Disneyland. Raj devises a date for Lucy that fixes their social anxiety problems.

Episode Navigation

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