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.

Unfortunately, it appears that one of the best moments where the two worlds could have collided was cut from the ABC half of ...

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.

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 ...

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

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 ...

Nevertheless, both Disney-owned shows pushed through logistical and scheduling challenges to craft two episodes where the Abbott teachers come face-to-face with the “Always Sunny” gang ...

"Abbott Elementary" is airing the 9th episode of its 4th season on Wednesday, Jan. 8 at 9:30 p.m. The episode will be a crossover with "It's Always Sunny in Philadelphia." There are several ways to ...