The Big Bang Theory

The Cohabitation Formulation

E16    Feb 17, 2011    20m    TV-PG
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As Wolowitz contemplates taking things with Bernadette to the next level, Leonard rekindles his relationship with Raj's sister.
Where to Watch The Cohabitation Formulation
Cast of The Cohabitation Formulation
  • Johnny GaleckiLeonard Hofstadter
  • Jim ParsonsSheldon Cooper
  • Kaley CuocoPenny
  • Simon HelbergHoward Wolowitz
  • Kunal NayyarRajesh Koothrappali
  • Melissa RauchBernadette Rostenkowski
  • Mayim BialikAmy Farrah Fowler
  • Aarti MannPriya Koothrappali
  • Carol Ann SusiDebbie Wolowitz (voice)

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