that ran for 52 episodes on Nippon Television. Tezuka had been dissatisfied with the first Astro Boy series produced at Mushi Production, and had wanted to create a remake for the series since 1974.

In 2007, Tezuka Productions began a multi-year project to digitize and color all of Tezuka's published manga series, comprising over 150,000 pages. Tezuka's former personal assistants reproduced the color charts that they originally used for all-color pieces while Tezuka was still producing series,