"The Big Bang Theory's" writers cracked audiences up for over a decade, but there were some hilarious unscripted moments that ...

Penny was 1 of The Big Bang Theory's core protagonists, and yet the sitcom did her character development a disservice twice in the sitcom's 12 years.

The Big Bang Theory creator Chuck Lorre is opening up about why he resisted giving Jim Parsons ’ Sheldon a love interest for so long.

On The Official Big Bang Theory Podcast, Chuck Lorre said that Kaley Cuoco's Penny wasn't fully developed in the earlier seasons of the show.

Mayim Bialik and Melissa Rauch's Amy and Bernadette shook up The Big Bang Theory when they were introduced in Season 3, ultimately becoming regulars.

'The Big Bang Theory' had a long and successful run, but it refused to let Raj Koothrappali grow in any way, shape, or form.