The Big Bang Theory Season 2 Episode 13 The Friendship Algorithm ( Air Date 2009-01-19 ) Genre Comedy category. Overview "Sheldon creates a scientific procedure for making friends.".
The Big Bang Theory Season 2 Episode 13 The Friendship Algorithm
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- Stars: Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg, Kunal Nayyar, Melissa Rauch, Mayim Bialik
- Director: Brian W. Armstrong, Rick Puccio, John DeChene, Jamie Hitchcock, Adam Faberman, Richard Price, Shannon Timberlake, Anthony Del Broccolo, Jeremy Howe, Tara Hernandez, Andy Gordon, Alexandra Barbone, Tara Treacy, Linda Cowan, Robinson Green, Peter Chakos, Sylvia Surdu, Justin D. Hetzel, Charlie Back, Ryan Berdan, David Goetsch, Eric Kaplan, Maria Ferrari, Faye Woods, Steve Holland, Todd Morris, Vikki McCarter, Kristy Cecil, Robinson Green, Steven Molaro
