Fox’s experiment with late-night animation didn’t go as well as they had anticipated. The network will end its underperforming late-night Saturday animation block Animation Domination High-Def (ADHD) in June, less than a year after it began. It was originally created as a replacement for the cancelled sketch comedy show MADtv.

ADHD was the invention of former Cartoon Network exec Nick Weidenfeld, who aimed to develop an Adult Swim-esque block that “takes advantage of the best parts of animation.” The studio that Weidenfeld started to create ADHD, Friends Night, will continue to produce content for Fox. The network has already ordered two half-hour series from Friends Night, which it will air in primetime. The names and premiere dates for those projects have not been announced yet. Weidenfeld will also continue to produce ADHD content for digital platforms like Hulu and Xbox.