The star of the FX series also admits he was initially hesitant about the crossover concept as 'It's Always Sunny in ...

"Somebody get me a fresh chair" because everyone needs to sit down for this. Abbott Elementary and It's Always Sunny in Philadelphia crossover episode has come to town.

The cast of It’s Always Sunny in Philadelphia made its way to the ABC show, which is set in Philly, for the crossover episode of comedy writers’ dreams. The brief promo for the Jan. 8 ...

The "It's Always Sunny in Philadelphia" crew is headed to "Abbott Elementary" in the first of two crossover episodes.

ABC has revealed the first promo for the 'Abbott Elementary' and 'It's Always Sunny in Philadelphia' crossover event. ABC Although the holidays are barely over, ABC is ready to get back to class ...

Quinta Brunson and Rob McElhenney explain how the 'Abbott Elementary' and 'It's Always Sunny in Philadelphia' crossover will happen. Gilles Mingasson/Disney Fans are wondering how an Abbott ...

In the newest Abbott episode, "Volunteers," The Gang gets educated. The Abbott Elementary/It’s Always Sunny in Philadelphia Crossover Brought Out the Weirdest of Both ...

The cast of "It's Always Sunny in Philadelphia" will appeared on "Abbott Elementary." Here's how to watch, when it airs and what to know about the crossover.