Millennium hand and shrimp, buggrit.
I really hate it when that happens. Get a moderately intriguing and interesting TV series with a large dose of the magic WTF factor, whose creators have at least some degree of planned story line for a couple of years and whose first series ends with a not entirely unexpected cliffhanger, with at least half of the questions unanswered, and what happens?
The corporate dingbats who run TV networks cancel the bloody thing. No resolution, no tying up of loose ends, just loads of questions that will never be answered.
Mutter. Mutter. Mutter. Oh, and too.