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

For fans who were looking for an update on Sheldon's best friend, Leonard (played by Johnny Galecki on "The Big Bang Theory"), things were a little scarce. While none of the other "Big Bang Theory ...

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 ...

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.

By Lesley Goldberg The Big Bang Theory Beta Test Episode - H 2012 Leonard and Penny 2.0 officially kick off Thursday when CBS’ The Big Bang Theory picks up on the heels of its risky 100th ...

The song that convinces Penny to join Leonard is "Tootsee Roll" by 69 Boyz. The Big Bang Theory airs Thursdays at 8/7c on CBS. (Full disclosure: TVGuide.com is owned by CBS.) ...

By Lesley Goldberg The Big Bang Theory Cuoco Galecki Hugging - P 2013 “Next week we start shooting the Valentine’s Day episode,” the actor behind Leonard tells The Hollywood Reporter.

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 ...

Leonard’s father is finally coming to town on The Big Bang Theory! It was announced at Wednesday’s PaleyFest panel that Judd Hirsch has been tapped to play Leonard’s dad, who is a stark ...

The fan-favorite couple has certainly been through the ringer, having split when Penny was unable to return Leonard's profession of love, reuniting in "Big Bang's" 100th episode.