Johnny Galecki may have parted ways with The Big Bang Theory prematurely. He feared that health problems would prevent him ...

The Big Bang Theory star Johnny Galecki almost left the sitcom after four seasons due to a serious health scare.

While The Big Bang Theory might be Chuck Lorre's most famous sitcom, one of his other heartfelt and hilarious TV shows is ...

In the 17th episode of the debut season of "The Big Bang Theory," something huge happens: Leonard Hofstadter (Johnny Galecki) ...

An early interaction between Penny (Kaley Cuoco) and Sheldon (Jim Parsons) on The Big Bang Theory proved to be the key to ...