Leonard Hofstadter and Sheldon Cooper are both brilliant physicists working at Cal Tech in Pasadena, California. They are colleagues, best friends, and roommates, although in all capacities their relationship is always tested primarily by Sheldon's regimented, deeply eccentric, and non-conventional ways. They are also friends with their Cal Tech colleagues mechanical engineer Howard Wolowitz and astrophysicist Rajesh Koothrappali. The foursome spend their time working on their individual work projects, playing video games, watching science-fiction movies, or reading comic books. As they are self-professed nerds, all have little or no luck with women. When Penny, a pretty woman and an aspiring actress from Omaha, moves into the apartment across the hall from Leonard and Sheldon's, Leonard has another aspiration in life, namely to get Penny to be his girlfriend. Written by
Smart Is The New Sexy.
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Did You Know?
Sheldon can be seen wearing various versions of "Flash" t-shirts throughout the series. In the series The Flash (2014), character Cisco Ramon frequently wears "The Big Bang Theory"-based shirts, such as one with Sheldon's catchphrase "Bazinga!" See more
The dead bolt on Penny's apartment door is clearly in the lock position in one scene, yet she opens the door without unlocking it. See more
Look, Sheldon's hugging me!
It's a Saturnalia miracle!
One of the final cards to appear in the credit sequence is the vanity card for Chuck Lorre Productions. In keeping with his practice on "Dharma and Greg" and "Two and a Half Men", there is a different message on the card each week, written by Chuck Lorre himself. See more
Referenced in Welshy Reviews: Psychoville
History of Everything (Instrumental)
Composed by Barenaked Ladies
Performed by Barenaked Ladies
Played during the end credits See more