Janine must rethink her lesson plans after her class performs poorly on a practice test in a new episode of "Abbot Elementary."

Don’t miss Abbott Elementary Season 4, Episode 9! Enjoy the hilarious crossover with It's Always Sunny in Philadelphia. Watch now!

In 2024, 9-1-1 and The Bachelor memorably joined forces for the most dramatic emergency in Bachelor Nation history. And this year, the network is making comedy history when the It’s Always Sunny in Philadelphia gang crashes Abbott Elementary for an unforgettable crossover episode.

When will the It’s Always Sunny in Philadelphia episode air? While we know for a fact that the Abbott Elementary episode of the two-part crossover event will occur on January 8, the exact date and time of the It’s Always Sunny portion has yet to be announced.

Episode 10 of season four of “Abbott Elementary” is called “Testing.” “Abbott Elementary” airs at 8:30 p.m. Wednesday, Jan. 15, 2025, on ABC. The storyline is, “Janine must rethink her lesson plans after her class performs poorly on a practice test,

Abbott Elementary fans! What did you think of the crossover episode with It's Always Sunny in Philadelphia last week? It honestly was so iconic and amusing, I hope you all enjoyed it too. Whether you watch Sunny or not.

With special coverage of President Biden's farewell address airing on Wednesday night, ABC has been forced to shift its planned lineup which will impact the release of Abbott Elementary's next episode.