"The Big Bang Theory" featured many recurring habits that defined Sheldon Cooper (Jim Parsons), but few were as consistent as his practice of knocking on doors three times — most often when visiting ...

The Big Bang Theory's success was largely due to the popularity of Jim Parsons' Sheldon Cooper, but the show took a toll on ...

Jim Parsons has opened up about the “miserable” experience of playing Sheldon Cooper on CBS’s megahit sitcom “The Big Bang ...

Sheldon Cooper often voiced whatever came to mind, but his most emotional line of dialogue is undoubtedly also 'The Big Bang ...