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Aired Friday 27 December, 4:15am - 4:40amon E4

The Big Bang Theory

Series 4 Episode 16: The Cohabitation Formulation

Wolowitz is torn between taking things to the next level with Bernadette and pleasing his mother. Meanwhile, Leonard rekindles his relationship with Raj's sister, Priya.

Category
Sitcom
Original air date
17/02/2011
Cast and crew
  • Mark CendrowskiDirector
  • Johnny GaleckiLeonard Hofstadter
  • Jim ParsonsSheldon Cooper
  • Kaley CuocoPenny
  • Simon HelbergHoward Wolowitz
  • Kunal NayyarRaj Koothrappali
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