From Majin Planet - Dragonball

Dragon Ball GT is the sequel to Dragon Ball Z, whose material is produced only by Toei Doga. The Dragon Ball GT series is the shortest of the Dragon Ball series, consisting of only 64 episodes; as opposed to it's predecessor Dragon Ball Z which consisted of 291 episodes. Originally intending to span 40 episodes (ending after the Baby Saga), the series continued for another 24 episodes. It is notable that Dragon Ball GT actually has reduced brightness, unlike its predecessors, Dragon Ball and Dragon Ball Z