War of the Worlds

The best thing about this series was that, in the first half of the first season, you never knew who was going to win the battles. An example plot would have the aliens trying to acquire a list of the locations of their canned (literally) comrades. The humans try to stop them but fail.

That's what I loved about the series: EVERYTHING was unexpected. Then late in the first season, you started having plots that were too obvious. (On TV in the 80s, there was no way aliens were going to detonate a nuclear bomb in the middle of the USA--especially with our heroes in the same city!) From that point on, the show settled for standard science fiction. It was still interesting, but it had lost its spark and never got it back.