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?
When Chuck Lorre first pitched the show to the studios, he intended for it be an adult version of the show as seen today. In hopes of attracting as many male viewers as possible he wrote the show with an all female cast. The female characters associated with the male main characters reflect the original characters' personas: Sheldon was originally Missy (a tall, attractive brunette from Texas who lacked intelligence), and lived with an older woman named Beverly (an intelligent scientist from New Jersey who took advantage of her roommate. Penny lived, as she does now, across the hall, but originally had an Indian roommate named Priya (a lawyer from New Delhi). It could be assumed that characters like Bernadette and Amy might have been potential characters to add later, as well as a single male love interest in the form of unintelligent Zack. See more
Sheldon's trademark knock (3 knocks + name, 3 knocks + name, 3 knocks + name) was not established until later in the first season, however, in a scene that pre-dates the start of the show, he is shown doing that knock sequence. See more
You're not done with her, are you?
Our babies are gonna be smart and beautiful.
Not to mention imaginary.
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
History of Everything (The Big Bang Theory Theme)
Music & lyrics by Barenaked Ladies
Performed by Barenaked Ladies
Played during the opening titles See more