heat vision was first introduced (I think) in the radio show.
http://xroads.virginia.edu/~ug02/superman/radio.html
There used to be a page to download them for free. I never did, but I notice now that all the links are for cd-rs of probably the same mp3s that were up on that dead page.
that's very cool that the joke is still around, Diesel. I remember hearing that one in junior high.
I completely agree with nomadic follower. Batman is my favorite superhero.
The best comic books, in my opinion as I'm no big collector or anything, are Detective Comics that feature Batman before Robin & The Amazing Spider-Man. As a kid, I also liked The Avengers a good bit.