What was the name of the American adaptation of the anime (TV cartoon) version of Tetsujin 28-go, a manga by Mitsuteru Yokoyama?

Gigantor is an American adaptation of the anime version of Tetsujin 28-go, a manga by Mitsuteru Yokoyama released in 1956. It debuted on U.S. television in 1964. As with Speed Racer, 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. Later it was shown as The New Adventures of Gigantor, on the Sci Fi Channel from 1993 to 1997.

Whimsical English names were given to the show's characters, such as "Dick Strong", a secret agent; a funny policeman named "Inspector Blooper"; and enemies, such as, "The Spider", "Dubble Trubble", and "Dr. Katzmeow". Other characters included Bob Brilliant's teenage son, Button, as well as his housekeeper, Lotus.