We had some of the old Flash Gordon episodes on VHS at one point. What cracked us up most about them (besides the...umm...questionable acting) was the fact that many of the costumes seemed to be recycled from other movies or shows. The good guys (while on a planet) would wear what looked like Robin Hood costumes and the bad guys wore Roman soldier uniforms. And so on and so forth.
Evening Rosie, never really noticed it at time. Those were much simpler days and I guess we never knew the difference. I did see a Flash Gordon serial in College, after seeing TV Star Trek, I knew I'd been had as a young 'un. Still for all that, they were enjoyable.