The highly-anticipated Abbott Elementary and It's Always Sunny in Philadelphia crossover episode airs this week on ABC.

Claim a square if the gang speaks to the camera crew, pitches a horrible business idea or scars a student for life.

This is an actual puzzle that has fit together in a really great way,' says EP Justin Halpern of the comedy crossover.

The ‘Abbott Elementary’ and ‘It’s Always Sunny in Philadelphia’ crossover episode will air on ABC on Wednesday, Jan. 8 and ...

Fans are wondering how an Abbott Elementary and It’s Always Sunny in Philadelphia crossover could possibly work when the ...

ABC is ready to get back to class with a new teaser for ;Abbott Elementary's upcoming crossover with 'It's Always Sunny in ...

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

"The Gang" is all here - and bringing absolute chaos to Abbott Elementary. The cast of It's Always Sunny in Philadelphia made ...

Creator-stars of 'Abbott Elementary' and 'It's Always Sunny in Philadelphia' on joining forces for two episodes where the gang volunteers at Abbott.

The Gang from It's Always Sunny in Philadelphia looks to leave their mark on Abbott Elementary in a new crossover teaser that was released.

In the newly released promo for the epic crossover between Abbott Elementary and It's Always Sunny in Philadelphia, the Paddy ...

It's Always Sunny in Philadelphia or Abbott Elementary? Kaitlin Olson and the cast from the ABC sitcom try to match the quote with the show.