While it is disappointing that it looks like it is not actually going to be a World War Z movie but instead just a zombie movie, I am not going to judge the movie based on that. This actually could be a good thing, I don't know if a movie that was trying to be like the book would work or not. It seems to me if they actually did a movie based on the book they would have to cut down the amount of people that it focused on to not confuse people too much, since there is only about 2 hours to work with. Then the individual stories would possibly even be cut as well. It could be done two different ways on TV though. First would be introducing many in the first episode, and having each episode consist of a story or two from those people, and getting the other's perspective each episode (in order for you to remember them mostly). The other way is completely independent episodes, where each episode is a story from one character, and you don't worry about the others. That hasn't really been done on a TV show before and would be interesting.