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 ...

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 ...

Spoilers for the Abbott Elementary and It’s Always Sunny in Philadelphia crossover are ahead! If you haven’t watched the ...

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 ...

With the fall shows making their midseason returns, renewals and cancellations are bound to be on the mind for creators and ...

In true TV crossover fashion, everyone learns a lesson when the It's Always Sunny in Philadelphia gang visits Abbott Elementary.

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

Fire threatens Mt. Wilson broadcast transmitters as L.A. TV, radio stations remain on alert; Observatory evacuated ...