2008 (Pilot, on Nickelodeon)
Before Adventure Time became a show on Cartoon Network, it became a pilot on Nickelodeon. It was a part of Random! Cartoons on Nicktoons Network.
2009–2018 (on Cartoon Network)
2009–2010 (merchandise)
2010–2018
Adventure Time aired its first episode on April 5, 2010. The series concluded on September 3, 2018, after airing its tenth season.
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