I watched this show in P.R.China many years ago during a time when there was nothing else entertaining on Chinese TV. It was the first American TV show aired in China and everyone who had access to a TV set watched it. I have fond memories of the show, it was interesting and had enough action to be entertaining. Considering the alternatives at the time, which were communist propaganda films, it was quite a treat.
But even then, a portal at the bottom of the ocean that leads to a city where Romeo and Juliet lived still seemed to be quite a stretch. So I understand why it only lasted one season.
But this show will always have a special place in my heart for being the first American entertainment program that I have seen.