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The Big Bang Theory

Series 9 Episode 9: The Platonic Permutation

Amy and Sheldon spend Thanksgiving at the aquarium -- as friends. Wolowitz volunteers at the soup kitchen with Raj, Emily and Bernadette. Penny realizes that Leonard knows her better than she thought.

Holiday / Sitcom
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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