I was actually watching Star Trek last night (i used to be a BIG fan as a kid) and I only lasted about 15 minutes before I had to turn it off, shizzle be baaaad as an adult
I never properly watched TNG, so I'm going through it now. first few episodes of the first season were ridiculously, horribly, bad. it got better fairly quickly, and by the third season I was looking forward to watching the next episode. some episodes are still a bit corny, but overall it's good. I don't think I could handle TOS.
the above is part of the reason why I laugh at people making up their minds after a few episodes of a tv show (in this case, terra nova). the basic premise has potential. if people were as quick to judge TNG, it wouldn't really have gotten a chance to get good. same with DS9, that had such a slow start, but got steadily better and better, until it reached awesome level.
the other thing I find weird is what people choose to complain about. story is original? welcome to modern media. story is technically impossible? welcome to sci fi/fantasy. some lines are lame? welcome to new writers and actors.
someone was complaining about how dinosaurs aren't killing people. I can think of a few reasons why they didn't. maybe they don't eat people, and they were just defending their territory. maybe they had just eaten and were leaving them for later. maybe something spooked them. maybe they only realised humans taste like **** after they killed them.
if you are willing to accept that a time portal put them back 85million **** years, please have the imagination to think of reasons why weird things happen. the viewer has to play their part in the experience.