Since its debut in 1990, The Simpsons: Treehouse of Horror has become a verified TV institution, currently totaling 37 annual specials
Because the episode numbering can get confusing (Season 35 is currently airing/aired), this guide is organized by Broadcast Season to ensure you find the correct episode.
Unique Structure: Season 34 featured two separate specials: the traditional "Treehouse of Horror XXXIII" and "Not It," a full-length IT parody.
