Terra Nova has now appeared. I thought it has potential. A LOT of early comparisons to both
Avatar and
Jurassic Park (and with a hint of 'LOST'), but still. The most gratuitous one was
when they were being chased by whatever they called it (roughly a T-Rex) and it hit the side of the jeep-like transport with it's head lifting the jeep up on two wheels. Hell, even the damn shot's composition was basically the same as in the original Jurassic Park.
And, honestly, with the way it was framed (in the story), I fully expected Stephen Lang's character to tell the new arrivals that, "everything out there wants to chew you up and shit you out!"

But I suspect the show will last longer than we might have thought (before it aired). I think it may go at least a couple seasons [and it may die at that point if they f*ck it up like they did with Spielberg's first TV foray:
Dark Angel]. It may last as many as five seasons. Of course, if they don't dig into the mysteries and conflicts they've set up right away, and keep working them each week, it won't last a 1/2 season. So in the pool, you can put me down for both "13 episodes will be made, but they will only air 10", and for "five years".

Because it really does depend on if they follow through on what they set up in the first episode, and expand the show to include new stuff as well (because what they set up won't be enough to sustain more than a season or so).