So terra nova just finished the first season, and the season finale, a double-episode, actually didn't suck. It wasn't good, but it was better than the rest of the show barring the first two episodes. It pushed every character out of their comfort zone, which is what I really like.
The characters feel extremely silly. The most important characters mostly have family, and they're pretty much falling over each other trying to save the families from each other. Ie, one bad guy has had her daughter taken hostage. So she captures someone's mom, and forces that mom's daughter to do some shady stuff. So that daughter endangers the next kid. It's just so... one-dimensional. It's like there's a list of important character aspects, and at the first place comes family. And family also comes at 2nd, third, fourth, fifth, sixth and seventh place. And aaaaall the way down on the list you'll find other things such as loyalty, greed or ideology.
The show is also horribly black and white, morally speaking. Sure, you have some people betraying each other, but it never has any real impact on the story and everyone's forgiven and hugs in the end. And that's the problem. The people doing shady shit are doing it for the same reason - someone's kid or parent has been taken hostage. And yet, for some reason, that makes some people unforgivable, enemies to mankind. And others who started out in the good-guy camp just get a pat on the back and cry about it for 3 episodes.