The Iron Eater The New Adventures of Superman : Season 1 Episode 15
TV-Y7-FV CBS 30m int(0)
Aired: December 17th, 1966 @ 12:00 AM EST on CBS
A metal eating monster attacks Metropolis after it arrives on Earth from a meteor. Whenever it eats metal, however, it changes its appearance. Superman final captures the monster wen it tries to destroy a bridge. He takes it into space and leaves it on an asteroid made of iron.