A week and change after It’s Always Sunny in Philadelphia’s Rob Mac found himself in the hot seat for chopping three syllables from his last name, the FXX star has given fans yet another ...

In Wednesday's Season 17 premiere episode of "It's Always Sunny in Philadelphia," the "Abbott Elementary" cast gets to cuss — including the "c-word"!

"It's Always Sunny in Philadelphia" returns tonight at 9 p.m. ET on FXX with the Season 17 premiere and a must-see comedy crossover continuation.

Ahead of tonight's return of FXX's It's Always Sunny in Philadelphia, Rob Mac made a very bold claim about just how good Season 17 is.

As “It’s Always Sunny in Philadelphia” enters its 17th season after nearly two decades, its team of writers/stars (Charlie Day, Glenn Howerton and Rob Mac) has become a well-oiled machine.

In January, the characters of the FX series It's Always Sunny in Philadelphia showed up as court-appointed volunteers on an episode of the ABC sitcom Abbott Elementary. The crossover continues July 9.

As “It’s Always Sunny in Philadelphia” enters its 17th season after nearly two decades, its team of writers/stars (Charlie Day, Glenn Howerton and Rob Mac) has become a well-oiled machine.

It's Always Sunny in Philadelphia's 17th season is a great parody of modern television, and shows that this show can still shock and surprise.

Over the last 20 years, television has changed, but the malignant narcissists of “It’s Always Sunny in Philadelphia” have not.

The It's Always Sunny in Philadelphia star, 48, recently announced he's shortening name to Rob Mac, and now, he's breaking down the reason behind the change in true Mac fashion—with humor and a ...

Kaitlin Olson reacted to her husband, Rob McElhenney, changing his name to Rob Mac during an interview with PEOPLE at the 'It's Always Sunny in Philadelphia' 20th Anniversary Celebration on July 1.