The Big Bang Theory has been a beloved sitcom for many, and one of its most endearing elements is the Soft Kitty song ...

With The Big Bang Theory running as long as it did, it's no surprise that it spawned its fair share of hilarious running gags ...

Of all of The Big Bang Theory's missteps, the Season 9 Mandy Chow subplot is perhaps most well described as baffling.

Years before The Big Bang Theory became TV's most popular show, the sci-fi sitcom 3rd Rock from the Sun was must-see television.