I have found a few old anime series online. By old, I mean made over 20-25 years ago (before most of us were born). The one I'm watching now is the Anne of Green Gables anime, which dates to 1979. It seems markedly different from a lot of recent anime series.
It's interesting to see how different anime was back then. Some of it does not resemble modern anime at all. I also noticed that more of it seems to be geared towards children as opposed to teenagers and adults. The colors are also duller, giving older series a dated look. And strangely, while some older series have people with weird hair colors, it seems that a lot of them only feature realistic hair colors (like brown, blond, etc.). Yet some things are still the same, like the big eyes.
Which pre-1990 anime series have you watched? Do you own any DVDs for any? Do you think a lot of things in anime have changed over the years or is the basic stuff still the same?
(If you want, you can discuss anime movies too. But they can't be recent ones - this is only for anime made before 1990.)