Abbott Elementary and It's Always Sunny in Philadelphia confirm crossover episode details

"Abbott Elementary" is set to return for Season 4, featuring a confirmed crossover episode with "It’s Always Sunny in Philadelphia." The episode will include all main characters from both shows, easing concerns about limited appearances. The episode will have significant storylines for both series, with Charlie Day's character playing a major role. The creators have collaborated closely to ensure the crossover maintains the tone of both shows. "Abbott Elementary" premieres tonight at 9:30 p.m. ET on ABC, while "It’s Always Sunny in Philadelphia" is preparing for its 17th season. Both shows are available for streaming on Hulu.