SGU started out drab and unimaginative. Suffering from the same problem that Human has in that it kept ignoring the sci-fi to be more "dramatic" and accessible. The second season it really started to pick up though and it finally started using some imagination and high concepts and less arguing about who got the best bunk, who should wear the captain's hat that week and which indie group they were going to soundtrack the montage with.
There's a lesson here somewhere. Be brave and embrace your concept or don't bother. The list of drama shows which succesfully balance high ratings and high nerd quotient isn't that big.