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

The Abbott Elementary & It's Always Sunny In Philadelphia crossover had hilarious character interactions, but it hid callbacks in its witty writing.

The star of the FX series also admits he was initially hesitant about the crossover concept as 'It's Always Sunny in Philadelphia' heads into its 17th season. By Brande Victorian [This story ...

This matchup brought together two Philly casts: “Abbott Elementary” and “It’s Always Sunny in Philadelphia.” The crossover ...

There's something about FXX's Rob McElhenney, Charlie Day, Glenn Howerton, Kaitlin Olson, and Danny DeVito-starring It's Always Sunny in Philadelphia ... back for a tenth season – and that ...

The cast of It’s Always Sunny in Philadelphia made its way to the ABC ... began putting things in motion at the beginning of this season of Abbott because Sunny had just started writing its ...

The cast of It’s Always Sunny in Philadelphia invades Abbott Elementary in the first teaser trailer for the comedy crossover event. It’s pretty uncommon to see shows on one network crossover ...

ABC has revealed the first promo for the 'Abbott Elementary' and 'It's Always Sunny in Philadelphia' crossover ... despite coming out as gay in Season 12. “You’re trash, you know that?” ...

There was a moment during the filming of the “Abbott Elementary” and “It’s Always Sunny in Philadelphia ... now in its fourth season. But they are both set in Philadelphia, which ...

Their next test? When the cast of “Abbott Elementary” appears in an episode of “It’s Always Sunny in Philadelphia,” as is planned for the coming season. We now know that the “Sunny ...

The trailer for the crossover episode between Abbott Elementary and It’s Always Sunny In Philadelphia has been ... of Abbott Elementary’s fourth season, and in October, the show’s executive ...