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The Big Bang Theory S2E13 — The Friendship Algorithm
7.9
The Big Bang Theory•Season 2•Episode 13

The Friendship Algorithm

7.9/10 · 5,014 votesJan 19, 200921 min

Ranked #18 of 23 in Season 2•−0.3 vs season avg

Discussion

Sheldon creates a scientific procedure for making friends.

Directed byMark Cendrowski
Previous episodeE12 · The Killer Robot InstabilityNext episodeE14 · The Financial Permeability
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Cast5

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

Crew5

Steven Molaro

Steven Molaro

Teleplay

Mark Cendrowski

Mark Cendrowski

Director

Bill Prady

Bill Prady

Story

Chuck Lorre

Chuck Lorre

Teleplay

R

Richard A. Rosenstock

Story

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Episode Summary

"The Friendship Algorithm" is episode 13 of The Big Bang Theory season 2. It scored 7.9/10 from 5,014 votes, ranking #18 of 23 episodes this season (season average 8.2). Directed by Mark Cendrowski, it aired on January 19, 2009.

Next: E14 · The Financial PermeabilityBest of Season 2