The opening and the ending was altered in the English dub with the original Gigantor theme. The Gigantor soundtrack was used in some scenes in every episodes replacing the some of the music from the original soundtracks.
Most characters' names were changed in the dub.
According to the government-published book about mecha in anime, the series' Tetsujin 28 toy was shipped in America under the Godakin brand.
Other than US, the 1980 series was broadcast in Arabic countries, Spanish-speaking countries (as Ironman 28), Italy (as Super Robot 28), Hong Kong and South Korea. The series was most popular in Arabic and Spanish countries.
Produced by Tokyo Movie Shinsha, the series is a modern style remake of the manga.