What to know about the ‘Abbott Elementary’ and ‘It’s Always Sunny in Philadelphia’ crossover episode(s!)
The cast of "It's Always Sunny in Philadelphia" will appeared on "Abbott Elementary." Here's how to watch, when it airs and what to know about the crossover.
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What Was Dennis Doing During Abbott Elementary's Crossover With It's Always Sunny In Philadelphia?
The Abbott Elementary & It's Always Sunny In Philadelphia crossover was a hit, but Glenn Howerton’s Dennis was mysteriously evasive for most of it.