The Abbott Elementary & It's Always Sunny In Philadelphia crossover was a hit, but Glenn Howerton’s Dennis was mysteriously ...

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.

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

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

In the newly released promo for the epic crossover between Abbott Elementary and It's Always Sunny in Philadelphia, the Paddy ...

By Christy Piña Associate Editor “The Gang” is all here — and bringing absolute chaos to Abbott Elementary. The cast of It’s Always Sunny in Philadelphia made its way to the ABC show ...

The actor and Quinta Brunson described how the tones of the two sitcoms would mesh and teased which characters would be ...