^Well, shows based on movies aren't necessarily the same in tone or approach as the movies they're based on. They can be much better. For instance, Alien Nation
, the film, set up a fascinating SF premise in which alien slave/refugees had become the latest immigrant population in Los Angeles, but mostly squandered it in favor of a by-the-numbers buddy-cop action flick; whereas Alien Nation
, the series, was a wonderfully rich and fascinating examination of all the dramatic, character, and philosophical possibilities that the movie failed to develop. Similarly, the movie Stargate
introduced a concept with unlimited possibilities and wasted it on rehashing tired old Egyptian and ancient-astronaut tropes, while the Stargate
TV shows took full advantage of the possibilities and constructed a rich, enormous, detailed, and mostly consistent universe.
Oh, and how could I forget Buffy the Vampire Slayer
? Lousy movie, excellent series.