It seems that all of these sci-fi/paranormal-type programs had some episodes that were better than others.
Even in the later version of TZ (in the 80s?) there were some good ones. I recall especially one about a futuristic society where the ultimate punishment was to be a literal outlaw - no one could talk to you even though there were ever so many people in the population, and you were denied basic public services, etc. The outlaw in question had a little flying robot camera following him at all times to make sure he was ostracized from the general population. He was a cynical, unlovable sort, but in the end, he took pity on another young outlaw and spoke to her, even though it meant an extended sentence for him.
There was another where the "Big One" was about to be dropped on the US and a woman had the power to stop time, which she did just as the bomb or bombs were about to fall, and her dilemma was should she leave the world frozen (but alive) like that and live a solitary life among her frozen family and friends, or should let things take their course and take the chance that there would be survivors?
The one of those later TZ's I remember best starred Robert Klein. One day, everyone around him started speaking another language, and he had to learn to cope. It was funny and well done.
By the way, a month or so ago one weekend afternoon I saw a rebroadcast of Seasons of Belief. I think that was from one of those Canadian sci-fi series of 15 or 20 years ago - what was it called? It was always broadcast very late at night, like 2 AM here in NYC. When Seasons of Belief was first shown, it created quite a buzz, as I recall. It was about "The Grither" Remember? Oh yes, the series was Tales from the Darkside.