Glenn Howerton's Dennis plays a crucial role in "Always Sunny's" Season 17 part of the crossover. McElhenney amazed by a daring joke in ABC's Abbott Elementary episode. Brunson and McElhenney ...

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 though.

Patrick Schumacker and Justin Halpern also tell TheWrap about an NSFW moment that was cut for ABC The post ‘Abbott Elementary ...

In this spoof of Waiting for Godot, Dennis and Charlie stand guard at their laser tag base waiting to ambush their enemy, Big Mo, but Dennis has doubts about why they play laser tag and whether or not ...

Abbott Elementary and It's Always Sunny deliver a hilarious crossover blending heartfelt humor with chaotic antics.