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The It's Always Sunny in Philadelphia gang gets schooled at Abbott Elementary (First-look photos and teaser!)
The It's Always Sunny in Philadelphia gang pays Abbott Elementary a visit in an upcoming season 4 episode, and perhaps ...
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New promo: 'Abbott Elementary' and 'It's Always Sunny' crossover promises chaos
"Abbott Elementary" returns to class with FXX's "It's Always Sunny in Philadelphia" gang in a highly anticipated crossover, premiering January 8 on ABC.