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The Big Bang Theory

Series 6 Episode 6: The Extract Obliteration

Sheldon gets excited when Stephen Hawking agrees to play against him in an online game of `Words with Friends'. However, when Sheldon starts to dominate the game, Hawking is less than pleased. Elsewhere, Penny signs up for a class at community college but feels reluctant to tell Leonard about it.

Original air date
Cast and crew
  • Mark CendrowskiDirector
  • Johnny GaleckiLeonard Hofstadter
  • Jim ParsonsSheldon Cooper
  • Kaley Cuoco-SweetingPenny
  • Simon HelbergHoward Wolowitz
  • Kunal NayyarRaj Koothrappali
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