Quinta Brunson talks about the inspiration behind Abbott Elementary and It's Always Sunny in Philadelphia's crossover episode, what it was like to have Philadelphia Eagles players making an appearance on Abbott Elementary and her Sesame Street appearance.

Kicking off Jan. 8 with 'Abbott Elementary', Quinta Brunson and Rob McElhenney shared details of the 'It's Always Sunny in Philadelphia' crossover.

The respective stars and creators of "Abbott Elementary" and "It's Always Sunny in Philadelphia" discussed how their shows came together for a crossover episode premiering Jan. 8 on ABC.

Don’t miss the unexpected twist when Ava announces that a group of volunteers from the school district will be coming to lend a hand at Abbott Elementary.

After more than two decades of playing Charlie Kelly, Charlie Day‘s beloved It’s Always Sunny in Philadelphia character is finally changing for the better. That’s thanks to the good-hearted Abbott Elementary characters.

The highly-anticipated Abbott Elementary and It's Always Sunny in Philadelphia crossover episode airs this week on ABC. Here's exactly when and how to watch the exciting event!