Watching TOS for the first time just now and (as you say, grading on a curve) I'm greatly enjoying it.

Even though I frequently disagree completely with the cast, the way that they're able to discuss alternate philosophies, change their minds through experience, and admit to being unhappy when their solution is imperfect - it shouldn't come across as refreshing as it does.

And it's just fun whenever Spock goes smash and starts crumpling props.