The Starlost was based on a concept by Harlan Ellison, who no one ever accused of being "campy," and had Ben Bova, one of the leading writers in SF to be the technical adviser.
However, the producers warped it far beyond the pale and ignored the "professionals." Bova even wrote a fictionalization of the process, called "The Starcrossed."
"Plan 9" was a basic low-budget '50s horror film by that master of the genre, Ed Wood. Johnny Depp starred in the biographic pic about him, about 10-15 years ago, and it showed some of the aspects of its production (as well as his other efforts).
I remember liking "UFO" at the time, though no-doubt, if I saw it now, I'd view it differently. The movie had space fighters based on the moon. I swear one of the takeoff scenes deliberately tried to copy the look of Spitfires taking off.
Gerry Anderson's greatest claim to fame, of course, is the production of the first British TV series aired on an American network: "Fireball XL-5." I was at an impressionable age when that came out, and have a Fireball model in my den.
Ron Wanttaja