Bullwinkle was my favorite cartoon when I was a kid. It turns out, it was also the fave of my mother-in-law, so my wife watched them too. A few years ago I picked up a DVD set of all of the Bullwinkle cartoons, and spent a wonderful evening watching them with my mother in law.
"Those were the best kids cartoons ever" my wife said. "Oh, no, they weren't for kids" answered her mother, "They were for the poor parents who had to watch all of those other stupid cartoon with their kids. That's why they were so brilliant. Kids loved them, but the parents got the real humor".
Here's some great insights from June Foray, the actress who voiced Rocky, Natasha and others...
https://www.youtube.com/watch?v=RwKEquWcnJE