We love it when when characters from an entirely different show pop up, like "X-Files" agents Mulder and Scully on a classic ...

The original premise for It's Always Sunny in Philadelphia didn't involve the show's characters running a bar, but it's a ...

It's Always Sunny in Philadelphia has made all of the stars household names, but one of them has been circling superhero projects for years.

Sitcoms enjoyed a serious renaissance in the 1990s, only to sputter out by the new millennium. Long before he was Robert ...