79%
2.6k votes
Rate this episode
What did you think?

518k
watchers
691k
plays
769k
collected
194
lists

The Big Bang Theory: Season 4

4x16 The Cohabitation Formulation
TV-14

Episode

IMDB TMDB

Ads suck, but they help pay the bills. Hide ads with

VIP.

Aired2011-02-18T01:00:00Z on CBS
Runtime20m
DirectorMark Cendrowski

WritersSteven Molaro (teleplay) + 5 more, Bill Prady (teleplay), David Goetsch (story), Jim Reynolds (teleplay), Lee Aronsohn (story), Chuck Lorre (story)
CountryUnited States
LanguagesEnglish
GenresComedy

Ads suck, but they help pay the bills. Hide ads with

VIP.

As Wolowitz contemplates taking things with Bernadette to the next level, Leonard rekindles his relationship with Raj's sister.

Private Notes

Actors
All Cast & Crew

Season Regulars
7

Guest Stars
2

Ads suck, but they help pay the bills. Hide ads with

VIP.

Ads suck, but they help pay the bills. Hide ads with

VIP.

Ads suck, but they help pay the bills. Hide ads with

VIP.

Ads suck, but they help pay the bills. Hide ads with

VIP.

The Big Bang Theory: Season 4

4x16 The Cohabitation Formulation
TV-14

Actors
All Cast & Crew

Season Regulars
7

Guest Stars
2

Johnny Galecki

Leonard Hofstadter

Jim Parsons

Sheldon Cooper

Kaley Cuoco

Penny

Simon Helberg

Howard Wolowitz

Kunal Nayyar

Rajesh Koothrappali

Melissa Rauch

Bernadette Rostenkowski

Mayim Bialik

Amy Farrah Fowler

Aarti Mann

Priya Koothrappali

Carol Ann Susi

Debbie Wolowitz (voice)

Find a TV show or movie

The Big Bang Theory: Season 4

4x16 The Cohabitation FormulationTV-14

ActorsAll Cast & Crew

Season Regulars 7

Guest Stars 2

Johnny Galecki

Leonard Hofstadter

Jim Parsons

Sheldon Cooper

Kaley Cuoco

Penny

Simon Helberg

Howard Wolowitz

Kunal Nayyar

Rajesh Koothrappali

Melissa Rauch

Bernadette Rostenkowski

Mayim Bialik

Amy Farrah Fowler

Aarti Mann

Priya Koothrappali

Carol Ann Susi

Debbie Wolowitz (voice)

Find a TV show or movie

4x16 The Cohabitation Formulation
TV-14

Actors
All Cast & Crew

Season Regulars
7

Guest Stars
2