"The Big Bang Theory" Says Goodbye

Tune-in for a 1-Hour Farewell Tonight

After 12 years, television's #1 comedy, The Big Bang Theory, says goodbye. After 12 seasons, 279 episodes and countless laughs, TV's longest running multi-camera comedy in TV history, signs off with a 1-hour farewell at 8/7c tonight (May 16) on CBS.

In the two-part series finale, the first episode, "The Change Constant", promises that “Sheldon (Jim Parsons) and Amy (Mayim Bialik) await big news.” The couple has been working on a super-asymmetry project that they hope brings them the Nobel Prize in physics. The second episode, "The Stockholm Syndrome", promises a last look at television's most endearing and unique characters. “Bernadette (Melissa Rauch) and Wolowitz (Simon Helberg) leave their kids for the first time; Penny (Kaley Cuoco) and Leonard (Johnny Galecki) try to keep a secret; Sheldon and Amy stick together; and Koothrappali (Kunal Nayyar) makes a new friend, as the gang travels together into an uncharted future.”

The Big Bang Theory Cast Thanks The Fans

Cast Shares What They'll Miss The Most

Why The Big Bang Theory Will Live Forever In Pop-Culture History

How will it all end? What does the future hold for the Big Bang universe of family and friends? Will Sheldon and Amy win the Nobel? And will the elevator finally get fixed? Find out by watching The Big Bang Theory's 1-hour series finale is tonight, May 16 at 8/7c on CBS.