Aired Saturday December 9, 3:25pm - 3:50pmon E4

The Big Bang Theory

Series 12 Episode 6: The Imitation Perturbation

When Howard dresses up as Sheldon for Halloween, Sheldon is determined to get revenge. Leonard is shocked that Penny cannot recall their first kiss.

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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