After much anticipation, the unlikely meeting of the two worlds unfolded on Wednesday's installment of "Abbott Elementary." ...

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

Below, Day chats with THR about pulling off the crossover episodes, his initial hesitations about the idea and why he thinks the next season of It’s Always Sunny will be one of their best.

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

It's Always Sunny in Philadelphia star Kaitlin Olson has picked a handful of episodes appropriate for Abbott Elementary's audience. The two shows recently released a crossover that blended their ...

There have been a lot of weird TV crossovers over the years, but the upcoming union of Abbott Elementary and It’s Always Sunny ... which is curating a few episodes of Sunny that could be ...

ABC and Quinta Brunson's Abbott Elementary is returning for Season 5 - and the crossover with It's Always Sunny in ...

For fans of both It’s Always Sunny In Philadelphia and Abbott ... That's because the first of two crossover episodes between the beloved Philly-based comedies will premiere today (Jan. 8 ...