No it definitely wasn't Clutch McCargo. I never heard of that one. It might have been Space Angel, but that doesn't sound like a title I can remember. We only had black and white TVs in our house in the 1960s, so even if it had been broadcast in color I wouldn't have noticed, but I doubt it was as it was even cheaper looking than Space Angel, I think. I do remember a spaceship and I seem to remember part of the title containing a name like X-15 (after the NASA experimental aircraft), but it was so long ago and the show was so terrible I'm now drawing a blank.