Season 17, Episode 1 of FX's "It's Always Sunny in Philadelphia," marks part two of its crossover event with ABC's "Abbott Elementary."

Sling Blue is one of the best streaming options to watch It’s Always Sunny in Philadelphia, thanks to the service’s low monthly price and selection of channels that includes F

Some teachers walk into a bar…and meet one of television's most iconic comedic gangs. It sounds like the setup to a bad joke, but it's a taste of what viewers will get when they return to Paddy's Pub for It's Always Sunny in Philadelphia's 17th-season opener.