[rulerboyz]

I have to go with The Next Generation, partly because I was born after TOS and was an adolescent when The Next Generation started. I think that in many ways the motion pictures that the original crew did during the 80s set the stage and tone for what would become The Next Generation. For example it was in The Search For Spock that we get our first look at what the Klingons will look like in The Next Generation. This second series was also very much stamped with Rodenberry's optimism for the future, since we see all kinds of technological progress that has been made since TOS. And likewise, all kinds of technological progress had been made in the field of television and cinema to allow the creators of the show to raise the bar considerably in their quest to present some compelling science fiction.