The Big Bang Theory 2007 | TV Show

Cast & Crew  |  Episode Guide

Two nerdy physicists share an apartment and an unlikely friendship with their beautiful neighbor with whom one of them is infatuated. Like the universe after the big bang, the show's popularity expanded, thanks to breakout star Jim Parsons, along with the (more…)

Premiered: September 24, 2007

Rating: TV-PG

User Rating:4.58 out of 5 (8,996 ratings)

Your Rating:

Season 4, Episode 16 The Cohabitation Formulation

First Aired: February 17, 2011

Howard contemplates a serious decision in his relationship with Bernadette; and Leonard and Raj's sister start seeing each other again.

Watch Now
Watch Soon
Mar 5

Previous Episode

The Benefactor Factor

Season 4, Episode 15

February 10, 2011

Next Episode

The Toast Derivation

Season 4, Episode 17

February 24, 2011

Guest Cast