Series overview Episodes Season 1 (2011) Season 2 (2011–12) Spin-off After Secret Mountain Fort Awesome got panned by critics, The Cartoonstitute original Uncle Grandpa short that Browngardt produced was adapted as a full series of the same name. A preview was shown as part of Cartoon Network's shorts development initiative. The series revolves around the title character, who is simultaneously the grandfather and uncle of everyone in the world. Browngardt explained that while the new series would retain some aspects of Secret Mountain, it would be a more lighthearted adaption for children. He ultimately expressed that he wanted "more variety in the music and be able to go sort of a happier place, though it does go dark and heavy at times". References Works cited External links 2010s American animated television series 2011 American television series debuts 2012 American television series endings American children's animated comedy television series Animated television series about monsters Cartoon Network original programming Cartoon Network franchises Television series by Cartoon Network Studios English-language television shows Heavy metal television series Television series created by Peter Browngardt Uncle Grandpa