The Big Bang Theory 2007 | TV Show

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Two nerdy physicists share an apartment and an unlikely friendship with their beautiful neighbor with whom one of them is infatuated.

Premiered: September 24, 2007

Rating: TV-PG

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

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Season 2, Episode 13 The Friendship Algorithm

First Aired: January 19, 2009

Here's a conundrum to baffle the guys: Sheldon's intelligence, which renders him socially awkward, is also the source of his new scientific procedure for making friends.

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The Killer Robot Instability

Season 2, Episode 12

January 12, 2009

Next Episode

The Financial Permeability

Season 2, Episode 14

February 2, 2009