Johnny Sokko and His Flying Robot". it was compiled in 1970 and presented as a feature movie to various tv stations around the country (none in CO, of course).
I only ever saw one episode of "Sokko" growing up, the first one, and that is mostly presented here. I actually first saw the movie in an 8mm box in K-mart, of all places, back when that was all you could own. which I am sure just astounds many kids these days that can see just about anything they want to immediately. the movie is made up of the first, second, third and fourth episodes, the thirteenth (I think) and the final one. they used each monster at least twice, which saved on costs, I'd think.
there's 26 episodes in the series, and it was dubbed by a different team than AIP's usual go to guys, Titra/Titan. Jerry Berke, AKA the voice of 8th Man, is the narrator. Bobbie Byers, the voice of Prince Planet was the voice for Johnny (and probably the rest of the female characters). it's good dubbing, but not quite up to Titan/Titra standards.
did I mention that none of our heroes voyage into space at all in the movie?