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.
Effectively killing any hopes in the near-term for a Blu-ray edition, it looks like the Cat’s Eye complete collection from Nozomi Entertainment is going out of print.
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.