In addition to The Big Bang Theory, Helberg has appeared in the comedy series MADtv and films such as Old School, Good Night, ...

Everybody loves a good running gag in a sitcom, and they often work well as a humorous callback and breed familiarity among the audience.

Chuck Lorre is heading to Banff. The Big Bang Theory and Two and a Half Men co-creator will give a keynote at the Banff World ...