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

Note: The following story contains spoilers from "Abbott Elementary" Season 4, Episode 9. When "Abbott Elementary" creator ...

Originally, Danny DeVito and William Sanford Davis' characters were supposed to know each other from high school, with each ...

The star of the FX series also admits he was initially hesitant about the crossover concept as 'It's Always Sunny in ...

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

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

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

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

Justin Baldoni’s lawyer Bryan Freedman appeared on an episode of “The Megyn Kelly Show” where the former Fox News host played ...

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

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.