Adventure Time with Finn and Jake, or simply 'Adventure Time', as it is now known, is a cartoon that runs on Cartoon Network. It follows the lives of two main protagonists, Finn the human and Jake the dog. These two aspiring heroes live in a magical world called "Ooo" and spend much of their time battling various evildoers or getting into wacky situations.
The show was initially a short that was shown on Nickelodeon, but Nickelodeon decided not to turn the show into a series despite entreaties from the producers. After pitching the show to Cartoon Network, it was given the go ahead and first debuted on that network in April 2010. The show is currently in its fourth season.