Season 2 is pretty good so far - just 4 episodes in.
Lots of things a person has to overlook though.
Why don't all of the dead rise again? I get it that the brain is the thing that has to be destroyed in order to kill the dead. But, there were still several bodies in the cars stuck on the highway where it is not possible to tell just from looking at the emaciated corpse what that person died of.
And, there are so many of them. Wonder how that happens as they tear a living person to pieces when they attack so the person just destroyed is probably not much of a threat. Guess I need to go back and watch the first season to remember what precipitated this mass turning. A bit person turns but a destroyed person is not very scary.
You have to go back to 1968 for that, because the story assumes the original Romero fable. Romero postulated that a probe from Venus that returned to Earth and crashed had picked up a virus that turned the recently deceased (as in the last 48-72 hours) into zombies. The ONLY thing these reanimated corpses wanted was to eat other living things, especially people. Once bitten or scratched by an infected zombie, you died in a day or two and immediately reanimated.
They communicate with each other and have a very finely tuned sense of what is alive or dead, since they don't attack each other at all. First season played the myth to perfection.
In one sequence in the second Romero film (Dawn of the Dead) there's a doctor in an underground lab trying to figure it out. He "trains" a zombie to not attack by rewarding him with freshly killed pieces of people as treats (bubba is his name) The best part of that sequence is there's a zombie strapped to a table that's still alive, but the entire lower half of her body is gone, and her entrails end around the bottom of her esophagus. When he gives her flesh she eats it greedily and it just slides out of the tube in the bottom. So they don't eat for nourishment.
Thise films are
Night of the Living Dead (b&w 1968)
Dawn of the Dead (1978) shot for 500,000 still grosses millions, possibly the BEST zombie film ever. Tom Savini's makeup is superb.
Day Of The Dead (1985)
There was a remake of Dawn in 1990 which he produced and Savini directed, and Universal did a studio remake of Dawn in 1994 which is one of the BEST remakes ever done imo.
Romero's quite a director, he produced Creepshow, the Crazies and Monkeyshines and Martin among many other films and even did a cameo in Silence Of The Lambs as one of Hannibal Lechters jailers.
Anyway, I'd watch the remake of Dawn the 1994 one if you want some continuity on where the tv show is really coming from.
The only way you can kill a zombie is a bullet (or a hatchet) in the brain.