The Big Bang Theory fans showed their love for the show with their reactions to this season 1 moment featuring Penny (Kaley ...

The Big Bang Theory built a big universe around its central leads, but this set of characters was noticeably absent for most of the series.

Penny has a strange relationship with her family in The Big Bang Theory, and one mystery doesn't help matters.

There is one issue that almost every sitcom faces and The Big Bang Theory was ready to tackle it. I'm glad they changed it to ...

By Lesley Goldberg For The Big Bang Theory diehards ... Here, THR has the exclusive first-look photos from Leonard and Penny’s wedding as well as what could be the most awkward wedding night ...

Leonard Hofstadter and Sheldon Cooper burst onto the scene in The Big Bang Theory as roommates. They technically didn’t need to be roommates, but their relationship seemingly worked. The deeper ...

In The Big Bang Theory, Leonard Hofstadter spends much of his time trying to keep his roommate Sheldon Cooper happy. Thanks to the roommate agreement he signed when he moved into the apartment ...

Do you remember that Leonard Hofstadter loved Superman, Dell computers and that he'd never celebrated his birthday? The Big Bang Theory remains one of the longest-running sitcoms in history.

The Big Bang Theory is getting a very special guest. The show announced on its Twitter and Facebook accounts this week that Leonard Nimoy's son, Adam, will appear on the show's Nov. 5 episode ...

Since the executive producers already revealed at Comic-Con that the Season 9 premiere will pick up just a few hours after we last left Penny and Leonard in the car on the way to Vegas ...