A minor point: GEORGE OF THE JUNGLE was backed by Superchicken and Tom Slick, IN THAT ORDER. I watched the show when it was first-run, in reruns in the 70's, and since then on numerous occasions. There was a period (in the 80's? 90's?) when, inexplicably, the latter 2 features were reversed. I KNEW it was wrong., It didn't even "feel" right. But the last time I saw some station running the show, the prints they had were the correct ones.
Fascinating to see how various "Marvel" artists did work that looked nothing like "Marvel".