‘Abbott Elementary,’ ‘It’s Always Sunny in Philadelphia’ Set Crossover Episode - Hollywood Reporter
- ‘Abbott Elementary,’ ‘It’s Always Sunny in Philadelphia’ Set Crossover Episode Hollywood Reporter
- ‘Abbott Elementary’ Sets Crossover Episode With ‘It’s Always Sunny in Philadelphia’ Variety
- It’s Always Sunny Takes a Field Trip to Abbott Elementary Vulture
- "Abbott Elementary," "It's Always Sunny in Philadelphia" tease crossover episode on social media CBS Philly
- ‘Abbott Elementary’ To Cross Over With ‘It’s Always Sunny In Philadelphia’ In Season 4 Deadline