Jericho 1 & 2
Survivors 1 & 2 (great british show no ones heard of)
The Colony 1 & 2 (beware its a reality show but still good if you're into the genre)
Out of the Wild: The Alaskan Experiment (a discovery show about survival imo not bad and a 3rd season that I have not watched yet)
Anyone feel free to add others and I cant wait until feb 12th for The Walking Dead.