To be honest I was surprised there were not more comments on this series. It's a true gem and a classic. Even if it's nearly 30 years old it's still one of the most entertaining and best children's series.
They have shown this on Norwegian TV several times. I can remember watching this every Sunday morning as one of my favorite shows. First of all it's an excellent written series with an idea of combining education and entertainment. Often a doomed combination, but the way it's pulled off in this series is incredible. They succeed in making it both entertaining and educational. You follow a group of character through the different stages of mankind. It's the same characters and so you get to know them throughout the series. They also use a narrator and include him as a character of his own in the show. Making him interesting and funny rather than just a boring narrator from a kids perspective.
The animation is also good. They characters look of the character matches up with who they are. It's well animated, still by todays standards.
As for the educational aspect you get to see history. It's as simple as that. What they do it put these characters into history making one of them Moses one episode and Julius Caesar in the next. They recreate human history as it's supposed to have happened in their own universe with the help of a few characters.
I consider this series as a true classic and one of the best children series of all time. Unfortunately it would seem that it is being forgotten as those who saw it are growing up.