When does Gigantor return?

Gigantor (Japanese: ??28?, Hepburn: Tetsujin Nij?hachi-g?; lit. "Iron Man No. 28") is a 1963 anime adaptation of a manga by Mitsuteru Yokoyama. The show follows the exploits of Jimmy Sparks, a 12-year-old boy who controls a giant flying robot with a remote control. The series was shown in Australia on Melbourne television in January 1968 through Trans-Lux.