Astro Boy was, believe it or not, the first ever anime on television. He was first scene in 1958 in Japan. In the early sixties, he was brought to the U.S. The show was very popular among the nation's youth, but then concluded in 1965. But then, in 1982, a color version of Astro Boy was made to air on Ausrailia's Nine network. That eventually was taken off air, but Astro Boy's memory will always remain.
Okay. enough of the history lesson. I think Astro Boy may not be the best anime ever, but it sure is significant. The creator of Astro Boy did something that was unheard of in Japan. That's right, airing a cartoon show on televison. Heck, if wasn't for Astro Boy, anime might have never been on TV. Sure the character development was not the best and the music was downright bad, but this is the most significant anime.