When does Blackstar return?

John Blackstar is an astronaut stranded on the planet Sagar after his spacecraft was swept into a black hole. Blackstar allies himself with the Trobbits, the shape-changing Klone, the dragon Warlock, and Mara the Enchantress. The series was Filmation's second fantasy epic, the first being The Freedom Force, a segment of Tarzan and the Super 7.