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The Big Bang Theory S2E13 poster

Watch The Big Bang Theory – Season 2 Episode 13: The Friendship Algorithm

The Big Bang Theory • Season 2, Episode 13 • 21 min • 2007 • ⭐ 7.9/10 • Comedy

Cast: Jim Parsons , Kaley Cuoco , Johnny Galecki , Simon Helberg , Kunal Nayyar , Melissa Rauch , Mayim Bialik

Directors: Chuck Lorre , Bill Prady

Watch The Big Bang Theory – S2E13

Episode Overview

Sheldon creates a scientific procedure for making friends.

Episode Navigation

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