Danny DeVito shared the ridiculous story behind It's Always Sunny's stars pulling an epic April Fool's Day prank on him.

When It’s Always Sunny in Philadelphia debuted on FX in 2005, it arrived with little fanfare and even less polish. Shot on a shoestring budget, the pilot was a scrappy, crude comedy about three ...

The Gang tries to spice things up in It's Always Sunny in Philadelphia Season 17 Episode 3, but the heat of the jokes is debatable.

It's Always Sunny in Philadelphia Season 17 Episode 4 brings the soulless energy of corporate America without enough humor to balance it out.

In the 17th season of “It’s Always Sunny in Philadelphia,” the gang is back and more gourmet than ever. Frank fakes a coma using a hyper-realistic cake of his own body — fondant wrinkles ...

In the 17th season of “It’s Always Sunny in Philadelphia,” the gang is back and more gourmet than ever. Frank fakes a coma using a hyper-realistic cake of his own body — fondant wrinkles ...

When It’s Always Sunny in Philadelphia debuted on FX in 2005, it arrived with little fanfare and even less polish. Shot on a shoestring budget, the pilot was a scrappy, crude comedy about three ...

With It's Always Sunny in Philadelphia running for 20 years, Screen Rant looks back at some of the best episodes that made the series truly iconic.

A theory of why “It’s Always Sunny in Philadelphia,” an excellent show about terrible people, has stayed successful throughout 20 years of changing cultural appetites.