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.

Best 'Big Bang Theory' episodes of all time. For 12 seasons, "The Big Bang Theory" delighted audiences with the antics and ...

Raj Howard Leonard Penny and Sheldon looking at a computer on The Big Bang Theory - CBS Created by Chuck Lorre and Bill Prady, "The Big Bang Theory" was a massive success for CBS during its ...

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 ...