Sheldon Cooper (Jim Parsons) is the heart and soul of "The Big Bang Theory" — for worse or for better, depending on how you feel about the sometimes controversial, sometimes abrasive character.

The Big Bang Theory‘s Sheldon Cooper is the last character anyone would expect to celebrate Halloween. Sheldon stuck rigidly to his schedule and disliked interruptions to his routine or a lot of noise ...

As Penny Hofstadter and Sheldon Cooper on "The Big Bang Theory," Jim Parsons and Kaley Cuoco share plenty of moments that range from uncomfortable to flat-out sweet — but in real life, they've also ...

The Big Bang Theory is, at its heart, about relationships. The geek culture references, cameos, and science speak are dressings, and funny ones at that. But from the very beginning, the series set ...

A truly great TV catchphrase is a rare thing indeed. Not only must it be so fully embraced by the public that it takes on life outside the television screen, but it also must speak volumes about the ...