While the Flintstones lived in a world which was a version of the Stone Age. The Jetsons live in a version of the same world in the future. "The Flintstones" had machines powered by birds and dinosaurs while the "Jetsons" had robotic machined, aliens, holograms, and other futuristic inventions. The original series had 24 episodes. They were broadcast on Sunday nights on ABC beginning on September 23, 1962. Prime time reruns were broadcast through September 22, 1963. It was the first program broadcast in color on ABC. The program did not get much attention. It was cancelled after one season and moved to Saturday mornings. It was very successful there.