Fanboy and Chum Chum is an American CGI animated tv series. It is based on a first episode/short from Frederator's Random! Cartoons called Fanboy. Nickelodeon's first original computer-animated Nicktoon is about Fanboy and Chum Chum, energetic tremendous fans of science fiction & fantasy, who live in the Fanlair, a water tower in the sleepy, colorful town of Galaxy Hills.