The Big Bang Theory creator Chuck Lorre and former WB TV chair Peter Roth discuss Kaley Cuoco's Penny and not doing right by her early on.

It also had a wall covered in Johnny Galecki’s chewing gum. Kunal Nayyar, who played Raj Koothrappali on the show, spilled the behind-the-scenes secret during an appearance on Sunday Brunch with ...

Jim Parsons famously auditioned so well for The Big Bang Theory that the creators were afraid it was a fluke, but Parsons was ...

Conan O’Brien surprised Mayim Bialik and Johnny Galecki with a throwback to their first on-screen kiss back in the 1990s on ...

The Big Bang Theory guest stars were often pop culture icons that would get the characters giddy with excitement, and these are the best ones.