this is the first animated superhero series, and it's still the best. the animation is excellent and has never been equaled. it's still amazing to watch these to this day, no question. it's too bad they never did any other DC heroes. and this Superman is no-nonsense, that's for sure. the music is really great as well.
Bud Collyer provided the voice of Clark/Superman, and did so for many years. his is the voice I usually hear when I read the comics. and he did the dual voice thing everyone thought was so cool when they had Batman do it later on. interestingly, none of these cartoons start out with the "truth, justice and the American way" that seemed to cause such a stir a while ago.