The cast of "It's Always Sunny in Philadelphia" will appeared on "Abbott Elementary." Here's how to watch, when it airs and what to know about the crossover.

Don’t miss Abbott Elementary Season 4, Episode 9! Enjoy the hilarious crossover with It's Always Sunny in Philadelphia. Watch ...

The anticipation for Abbott Elementary and It’s Always Sunny crossover episode has been building up among the fans of both ...

After the recent announcement of Fallout Season 2’s production delay, titles such as NCIS and Grey’s Anatomy have now been ...

ABC released a huge new image gallery from the crossover event between FXX's It's Always Sunny in Philadelphia and ABC's Abbott Elementary.

What to watch - The best movies and TV shows to watch this weekend. Get top recommendations for your next binge-worthy series ...

The idea for the crossover was conceived by It’s Always Sunny creator and star Rob McElhenney and Abbott creator and star Quinta Brunson, who was asked to name the greatest rapper of all time for ...

Patrick Schumacker and Justin Halpern also tell TheWrap about an NSFW moment that was cut for ABC The post ‘Abbott Elementary ...

A funny, faithful ‘Abbott/Sunny’ crossover episode In the most Philly moment on TV this — or any – season, the crew from ...

The 'Abbott Elementary' EPs talk jokes cut from 'Always Sunny' crossover, including backstories for Frank and Mr. Johnson.

Producers Justin Halpern and Patrick Schumacker break down the epic 'Abbott Elementary' and 'It's Always Sunny in ...

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.