Don't skip episodes because a reviewer thinks an episode is bad. There are a lot of reviews on that site that I don't agree with. And even truly awful episodes often have good scenes in a B-storyline if the A-storyline isn't any good. Yes, all Star Trek series re-used a lot of props, sets, effects and even actors. I think it's funny if done right. Does anybody know of a thread on this forum discussing this topic? I'd love to read about this kind of nitpicky stuff; Spot the prop.