I tend to agree with the idea that the two shows were timeless in their own way, though I do also laugh at certain things. Original Klingon appearance, and the in-universe reasoning behind it generated years later, is kind of sketchy but the best they could do, I imagine. Tribbles. That floaty light patchy thingy that fed on hate. It was a flashlight shined on a wall, and they laughed it away in the end. The Space Cornucopia (edit: of Doom) O0
Some of these things evoke a big smile and a laugh. Original BSG worked wonders with their budget, I think. So did ST TOS. But I think the latter was more... ambitious in certain ways, such as showcasing a wide variety of alien life forms, almost one per episode. They shot for more, while BSG was much more story-driven.