The Big Bang Theory closed its twelve-season run as a defining cultural moment for sitcom fans, blending quirky science, heartfelt friendships, and classic one-liners into one of TV's biggest hits.

The Big Bang Theory ran for 12 seasons and a total of 279 episodes and has spawned two spinoff shows so far, which makes for ...

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