Ah yes. The cloud city from the original Star Trek. Brings back memories.
I loved that show, but time has sure not been kind to the special effects. :)
I’ve noticed in some rebroadcasts from the original 16mm film that you can tell they had an eye to the show being presented on low quality TV. I’ve noticed the same with the old Twilight zone episodes.
You can see all sorts of flaws in backgrounds, sets, etc, that they just know would not be noticeable on a TV, but is glaringly obvious on a modern flat screen.
Think there was a major hottie in that episode.