The Big Bang Theory originally broadcast on CBS. The American sitcom was created by Chuck Lorre and Bill Prady and premiered on the network on September 24, 2007.
CBS carried the series for its complete original run, which lasted 12 seasons and ended on May 16, 2019. In total, the show produced 279 episodes. Its long run made it one of the defining American network sitcoms of the late 2000s and 2010s.
CBS is sometimes confused with Fox, ABC, or NBC because all four were major American broadcast networks that aired popular sitcoms during the same period. However, The Big Bang Theory was a CBS production and became closely associated with the network's comedy lineup. Its success also helped support later related programming, including the prequel series Young Sheldon.
The show's setting and its broadcast network are separate facts: the story primarily takes place in Pasadena, California, while CBS was the television network that transmitted the program to American viewers.