When does Gigantor return?

Gigantor is a 1963 anime adaptation of Tetsujin 28-go, a manga by Mitsuteru Yokoyama released in 1956. It debuted on US television in 1966. The characters' original names were altered and the original series' violence was toned down for American viewers. A new series was produced in Japan in 1980 and was later shown as The New Adventures.