Season 0 of Uncle Grandpa premiered on January 1, 2008.

Season 1 of Uncle Grandpa premiered on September 2, 2013.

Season 2 of Uncle Grandpa premiered on March 5, 2015.

Season 3 of Uncle Grandpa premiered on December 16, 2015.

Season 4 of Uncle Grandpa premiered on July 1, 2016.

Season 5 of Uncle Grandpa premiered on December 16, 2016.