I for one didn't care for Assignment Earth. It was just a backdoor pilot riding the coat tails of Star Trek to get off the ground. It also ignored the stars of the show which made it even more bad.
True, it was not an especially good episode of Star Trek
. Nor was it a really good episode of Assignment: Earth
, for that matter. It was trying to be two things at once, and both suffered for it. But I think the idea behind the series had a lot of potential.