The respective stars and creators of "Abbott Elementary" and "It's Always Sunny in Philadelphia" discussed how their shows came together for a crossover episode premiering Jan. 8 on ABC.

The actor and Quinta Brunson described how the tones of the two sitcoms would mesh and teased which characters would be paired together.

Fans are wondering how an Abbott Elementary and It’s Always Sunny in Philadelphia crossover could possibly work when the characters probably shouldn’t be allowed within a hundred yards of a school. Quinta Brunson and Rob McElhenney recently explained how the “authenticity still remains” with both of their shows in the upcoming crossover event,

The idea for this absurd crossover between the two Philly-based comedies has been cooking for a little while now. Most likely, none of the characters from It’s Always Sunny woul