The Big Bang Theory leaves its fair share of plot threads dangling, but this one is more emotional than all the others ...

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 Season 6, Episode 20, “The Tenure Turbulence,” pits Sheldon, Raj, and Leonard against each other as they all go after a tenure position that opens up at their workplace ...

The Big Bang Theory kept fans laughing with its quirky humour and ... and David Healy in '90s sitcom Roseanne. Johnny starred as Leonard Hofstadter from the first episode of The Big Bang Theory ...

Leonard's love interest in The Big Bang Theory was not well-received by fans. The character quickly became one of the most ...

Johnny portrayed experimental physicist Leonard Hofstadter on the long ... Mayim's character helped Big Bang Theory fans see a different side to Sheldon and away from the cameras, the actress ...

Although their Big Bang Theory characters were passionate about science, physics and Star Trek, their geek gang eventually found romance too. Sheldon (Jim) and Amy (Mayim Bialik) bonded over their ...

While Sheldon is well-versed in the intricacies of theoretical physics, the subtle art of sarcastic wit consistently leaves ... you'll have a billion more people to annoy instead of me". Again, when ...

Leonard Hofstadter was never the flashiest guy in the room but he still managed to rattle Penny more than once in The Big Bang Theory.

Johnny Galecki is a dad! The "Big Bang Theory" star, 44, announced the birth of his son with girlfriend Alaina Meyer on Instagram Wednesday by way of a sweet picture of the baby's tiny hands ...