Steven Spielberg's time-travel-with-dinosaurs show Terra Nova has been drawing plenty of comparisons to Avatar. But when the show revealed its first trailer to critics, the comparison on everyone's mind was television's former mega-hit, Lost.

As the fall TV season starts up, shows are resolving their agonizing summer cliffhangers — but for some unlucky shows, that resolution never arrived. Here are the most frustrating "cancel-hangers," cliffhanger endings for shows that got cancelled too soon.

What TV show is going to be the new Lost? People keep asking. But the sad fact is, it may take a few years before we see anything like the island-castaway show again. Real-life spoilers ahead.

If aliens invading is your thing, this is definitely your week: Not only does the new V premiere on Tuesday, but Syfy are running marathons of the old show to keep you busy 'til then. Also: Batman! Prisoner! And dragons!

This week on TV, ummm... well, maybe we should all Netflix the same things and then discuss them as if they were newly televised. No, wait. Actually, it's not that bad. Among the things that may keep you from killing your TV this week: Batman meets his inspiration, Doctor Who follows Steven Moffat into a weird…