But you can't compare special effects when there's a span of 18 years between the two. Of course the lizard was bad, as were the sets, the fights, and William Shatner. But that's what made it great. It was a cheesy show that knew it was pretty much a cheesy show and went whole hog, unabashed at it. People flocked to it. TNG on the other hand was bad for it's first three season AND took itself so seriously it was laughable. It was pure Trek dedication that kept that show afloat until the other factors stepped up and made it great.