Sheep in the Big City is an American animated television series created by Mo Willems for Cartoon Network. The 9th of the network's Cartoon Cartoons, the series' pilot first premiered as part of Cartoon Network's "Cartoon Cartoon Summer" on August 18, 2000, before its official debut on November 17, 2000. It aired until April 7, 2002, with repeats airing until 2003. imdb.com