When does Shazam!/Isis Hour return?

Shazam! is a half-hour live-action television program that was produced for Saturday Mornings by Filmation. The program starred Michael Gray as Billy Batson, a teenage boy who can transform into the superhero Captain Marvel. With his guardian "Mentor" (Les Tremayne), Billy travels the country in a 1973 Dodge Open Road motorhome, looking for injustices to resolve. The show ran from 1974 to 1976 on CBS's Saturday morning lineup.