Catch up TV on Astro Boy. Watch the latest and all other episodes of Astro Boy now online, broadcasted on 7Two. Catch up on your favorite 7Two TV show: Astro Boy. Replay tv on its best! Set in futuristic Metro City, Astro Boy is about a young robot with incredible powers created by a brilliant scientist named Dr. Tenma. Powered by positive "blue" energy, Astro Boy is endowed with super strength, x-ray vision, unbelievable speed and the ability to fly.