There was only one Superman, as anyone my age can tell you.
Who can forget those immortal words, repeated hundreds of times on our little 12 inch black and white TV set:
"Faster than a speeding bullet. More powerful than a locomotive. Able to leap tall buildings at a single bound. Look! Up in the sky! It's a bird! It's a plane! It's Superman! Yes it's Superman, strange visitor from another planet who came to Earth with powers and abilities far beyond those of mortal men. Superman, who can change the course of mighty rivers, bend steel in his bare hands, and who, disguised as Clark Kent, mild-mannered reporter for a great metropolitan newspaper, fights a never-ending battle for Truth! Justice! and the American Way!"
