Back when it was new and I was 11, I hated the Dungeons & Dragons Saturday morning cartoon. I was a D&D player at the time and felt that the show sucked because of the "inaccuracies" and thought it was too childish.
Well, I have kids of my own, and they absolutely love the old He-Man cartoons. Netflix recommended the D&D cartoon because of the high rating He-Man has earned, so I started on those, and the kids love it - and I'm realizing this was actually a very high quality cartoon for it's day. There are plots, it's not as stupid as He-Man could be, the voice acting is good, and the animation quality is pretty good for it's day. I put it on for the kids while I surf the net, and find myself with the chair rotated facing the TV instead of the monitor. It's superior to most modern cartoons in every way except animation. I like that it's scary and there's a real sense of threat to the characters, in ways that just wouldn't fly these days. I think raising my kids on 80s cartoons is going to do them some good in the long run.