Details: This poster shows the five main characters from The Big Bang Theory against a sky background. In the top left it says 'The Big Bang Theory'.
The Big Bang Theory is an American sitcom created by Chuck Lorre and Bill Prady, both of whom serve as executive producers on the show. It premiered on CBS on September 24, 2007. Set in Pasadena, California, the show is about two Caltech prodigies in their 20s, one an experimental physicist (Leonard Hofstadter) and the other a theoretical physicist (Sheldon Cooper), who live across the hall from an attractive blonde waitress with show-biz aspirations (Penny). It stars Johnny Galecki as Leonard Hofstadter, Jim Parsons as Sheldon Cooper, Kaley Cuoco as Penny, Simon Helberg as Howard Wolowitz, and Kunal Nayyar as Rajesh Koothrappali.