I used to have a fond memory of the first season of the '88 series, but then I revisited it, and it turned out to have been mostly pretty horrible. The production values were dirt-cheap, the special effects were primitive compared to the contemporary Star Trek: TNG from the same studio, the writing was apparently done largely by strikebreaking non-union writers so the stories were a mess, and the actors gave broader and weaker performances than I remembered, although their chemistry was reasonably good.
And it was silly to do a direct sequel to the '53 movie and yet have most of the population forget that a cataclysmic global invasion had ever happened. As dismal and awful as the second season was, at least it tried to depict a world that was still feeling the consequences of the invasion 35 years later, although at the cost of being inconsistent with the first season.