"The Big Bang Theory" brought us an unforgettable mix of science, friendship, and laughter that we're still talking about 18 ...

Bill Prady, co-creator of "The Big Bang Theory," revealed why the elevator in the series is broken and why it was never fixed over 12 seasons.

There's a very interesting reason behind The Big Bang Theory's broken elevator, and why the writers didn't bother to fix it until the end. The American sitcom ran for a total of 12 seasons from 2007 ...

exit befalls on Yeun's "The Big Bang Theory" character Sebastian, who appears briefly in season 3, episode 22, "The Staircase Implementation." Appearing solely in a flashback that depicts Leonard ...