Only 52 episodes of the original, brilliant series were made. It wasn't even on long enough to jump the shark. It does have a veeeery cool theme song though. Currently being shown on Sci Fi either, depending on your perspective, too late or too early at oh dark thirty. Word of warning, not to be confused with Frankenstein Jr., this band, or this veeeeery scary place.
GIGANTOR! Cartoonist Mitsuteru Yokoyama, Gigantor's creator, died two years ago.