Plus, Charlie Day and Glenn Howerton tell TheWrap which other sitcom they'd love to cross over with after "Abbott Elementary.

It's Always Sunny in Philadelphia was nearly canceled at one point due to low ratings but was saved when superstar Danny ...

Kimberly Potts' 'It's Almost Always Sunny in Philadelphia' book uncovers behind-the-scenes moments, from a near-drowning to ...

“They were like, ‘We don’t want to end it,'” Howerton recalled his co-stars saying. “And I was like, ‘Oh, well I can’t stop ...

Speaking exclusively to PEOPLE at PaleyLive's It’s Always Sunny In Philadelphia 20th Anniversary Celebration in Los Angeles ...

It's Always Sunny in Philadelphia will return for a groundbreaking seventeenth season on July 9, making it the ...

Author Kimberly Potts’ new book out July 1, “It’s (Almost) Always Sunny in Philadelphia: How Three Friends Spent $200 to ...

It's Always Sunny in Philadelphia has some absurd stunts by one of the characters, Frank Reynolds, played by Danny DeVito.

As Pott’s book title states, the pilot of It’s Always Sunny in Philadelphia only cost stars Rob McElhenney, Glenn Howerton, ...

Meanwhile, DeVito had nothing but praise for the ABC series, saying, “That was a great experience, working with the ‘Abbott’ people.” “It’s Always Sunny in Philadelphia” Season 17 ...

A new book about "It's Always Sunny In Philadelphia" details the outrageous sitcom's unlikely success, starring Glenn Howerton, Danny DeVito, Charlie Day, Rob McElhenney, and Kaitlin Olson.