The Cartoon Network folks have set up a nice little webpage called Saturday Morning Forever which features classic Hanna-Barbera cartoons, most of which (I can't help but point out) never — or almost never — ran on Saturday morning. But there are some real goodies over there from the early days of H-B. This link will take you directly to a classic Quick Draw McGraw cartoon where you can thrill to the exploits of El Kabong as written by the great Michael Maltese and voiced by the incomparable Daws Butler and Don Messick.
The page loads slowly and you may have to sit through an ad or two. But hey, it's a free cartoon. How often do you get that these days? I mean, besides on my webpage. Thanks to Robert Spina for the tip.