The best science fiction and fantasy television hooks you with endless suspense... including hair-raising cliffhangers. But only the greatest cliffhangers can make you throw your remote at the screen, and keep you wondering for weeks. Here are the 20 awesomest.
After we did the best Doctor Who cliffhangers, we felt like we should do a round-up for all scifi/fantasy television shows — and we polled people via our Facebook page. Crowdsourcing works! (Oh, and a bunch of people named cliffhangers from shows that were canceled immediately afterwards, rendering those cliffhangers de facto endings. Maybe we'll do a separate list of just those "cancel-hangers" in a few days.)