Tetsujin 28 is the daddy of the giant robots. Debuting as a manga in 1956 and an anime in 1963 the show featuring a giant former Japanese super-weapon left over from the war put to good use by Shotaro Kaneda, son of its' inventor, was one of the earliest robot stories of its' kind, paving the way for Mazinger Z and the whole butterfly effect that's led to all robot fiction as we know it.
