Probably what got me hooked on the show to begin with was that at the time, a new episode was reliably being shown each and every week. At a time when Star Trek: TNG would occasionally throw in a rerun, this was hugely gripping. (I also remember thinking, "Eh, it's based on a movie; it'll never last more than a season or two.)
Also, Mr. Hewlett is awesome. Too bad his movies are kind of obscure; having enjoyed Cube and Nothing, I really want to see A Dog's Breakfast and Treed Murray one of these days.
Anyway, a vital point: Roland Emmerich is reportedly heading the new movies, and apparently he did not like the direction the TV series took at all. Let's not forget that Mr. Emmerich brought us such delights as Godzilla, 10,000 BC, and 2012.