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

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

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

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

Go birds, indeed! We're giving the Abbott Elementary and It's Always Sunny in Philadelphia crossover episode on ABC an A+.

This week's "Abbott Elementary" episode is just half of the story. "Volunteers" featured the long-awaited crossover with FX's ...

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 ...

A new “Abbott Elementary” episode brings volunteers from “It’s Always Sunny in Philadelphia.” The crossover episode airs ...

Part one of the crossover episode will air at 8:30 p.m. ET on ABC. Those without cable can watch the show for free through FuboTV or DirecTV Stream each offering a free trial to new users. Sling is ...

A live TV streaming service that includes ABC in its channel lineup will do the trick. Hulu Plus Live TV and YouTube TV are ...

"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 ...