TMS is now looking to expand their offerings of the show to Amazon Prime.
The first half of the two-season series in its original Japanese with English subtitles.
The show originally ran for 73 episodes through 1985 and the series was released on DVD in North America through Nozomi Entertainment, who acquired it in summer 2013.
Crunchyroll previously set both seasons as available for members, though it’s only available in North America due to Nozomi’s distribution rights for it.