As of Jan. 9, the episode is available to stream on Hulu. The second crossover is expected to be an episode of "It's Always Sunny in Philadelphia," which has aired on FXX since 2013.
It'sAlwaysSunny has a different vibe. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Hi! Are you a big Abbott Elementary fan excited for ...