Of all the offbeat details in Young Sheldon's intro credits, one photo leaps out right away—a cow sitting serenely beside young Sheldon Cooper on a couch in the center of a Texas field.

The Big Bang Theory isn’t just a sitcom—it’s a cultural phenomenon that brought in a subject like physics, nerdy humor (like ...

If you thought The Big Bang Theory began with Leonard and Sheldon’s introduction to Penny, think again — the original opening ...

From "The Staircase Implementation" to "The Opening Night Excitation," these are the funniest episodes of The Big Bang Theory ...