I'm a little disappointed with the comments here. The negative comments seem to propose that the only quality that's important in a series is that it's well-animated and high-budget. This is not a Disney cartoon. This is, however, groundbreaking for Japan as it was the very first televised anime. The animation is not quality, but the art style is simplistically beautiful. What's honestly great about Mighty Atom AKA Astro Boy is the writing. The style may be outdated, but the messages are timeless and interesting to both kids an adults. Most of the plots of the show come from the original manga written by Tezuka. Tezuka is the god of manga and anime, without him neither would exist as it does today. Astro Boy was one of his best works, and certainly his most popular, but he also wrote fiction for adults and explored every genre imaginable. He even wrote an award-winning manga about Hitler. Personally I would recommend reading both Astro Boy and Phoenix, his other greatest work. Note that I am not speaking from nostalgia, nor am I Japanese. I found the works of Tezuka as an adult and appreciate him for both his adult and children's works.