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The Big Bang Theory S4E16 — The Cohabitation Formulation
7.8
The Big Bang Theory•Season 4•Episode 16

The Cohabitation Formulation

7.8/10 · 4,341 votesFeb 17, 201120 min

Ranked #18 of 24 in Season 4•−0.2 vs season avg

Discussion

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

Directed byMark Cendrowski
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Season 4 Episodes24

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Cast7

Johnny Galecki

Johnny Galecki

Leonard Hofstadter

Jim Parsons

Jim Parsons

Sheldon Cooper

Kaley Cuoco

Kaley Cuoco

Penny

Simon Helberg

Simon Helberg

Howard Wolowitz

Kunal Nayyar

Kunal Nayyar

Rajesh Koothrappali

Melissa Rauch

Melissa Rauch

Bernadette Rostenkowski

Mayim Bialik

Mayim Bialik

Amy Farrah Fowler

Crew9

Chuck Lorre

Chuck Lorre

Story

Steven Molaro

Steven Molaro

Teleplay

Bill Prady

Bill Prady

Teleplay

Steven Molaro

Steven Molaro

Executive Producer

Mark Cendrowski

Mark Cendrowski

Director

Jim Reynolds

Jim Reynolds

Teleplay

David Goetsch

David Goetsch

Story

R

Robinson Green

Production Coordinator

Lee Aronsohn

Lee Aronsohn

Story

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Episode Summary

"The Cohabitation Formulation" is episode 16 of The Big Bang Theory season 4. It scored 7.8/10 from 4,341 votes, ranking #18 of 24 episodes this season (season average 8.0). Directed by Mark Cendrowski, it aired on February 17, 2011.

Next: E17 · The Toast DerivationBest of Season 4