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.

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.

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

The one cliche and trope that never seems to go out of style is the classic “Will They, Won’t They.” It’s an overused ...

A Los Angeles wind storm has unleashed devastating Pacific Palisades wildfires, leaving a string of celebrities affected ...

The crossover episode of two is the ultimate tribute to the city’s attitude, quirks, and, of course, its signature phrase: ...

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

Philly pride runs strong, even for celebrities. The Welcome to Wrexham creator and Bradley Cooper are not the only famous ...

Charlie learns to read, Dee impersonates Ben Franklin, and Frank fights raccoons. We don't quite know what's up with Dennis ...

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 ...