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

The Abbott Elementary & It's Always Sunny In Philadelphia crossover had some ridiculous rivalries, but Charlie got a ...

Willard R. Abbott Elementary School and its students, teachers and administrators are now officially part of the It’s Always ...

Here's some background and inside jokes to help fill in some of the gaps for viewers who don't watch both Philly-based shows.

As of Jan. 9, the episode is available to stream on Hulu. The second crossover is expected to be an episode of "It's Always ...

The two sitcoms could hardly be more tonally different, but this week’s crossover episode of “Abbott” was relatively seamless ...

Here's a look at our real-time thoughts on tonight's crossover between FXX's It's Always Sunny in Philadelphia and ABC's ...

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

Justin Baldoni’s lawyer Bryan Freedman appeared on an episode of “The Megyn Kelly Show” where the former Fox News host played ...

With the first part of 'Abbott Elementary' and 'It's Always Sunny in Philadelphia's crossover airing Wednesday on ABC, ...

Charlie (Charlie Day ... crossover will air at a later date since production on Season 17 of "It's Always Sunny in Philadelphia" recently finished, per the Los Angeles Times.