Haven't read the thread for a while so i'm sorry if this has already been asked.
Is the Comic finished or still on going?
How much will i spoil the tv-series if i start to read it?
I really liked this season and i'm itching for more.
I just read the first 12 issues this week after having watched both seasons of the TV show first.
I'll just say that the characters in the comic, at least through the first 12 issues, are far different than their TV counterparts. Some of the set pieces are the same, except for 1 major set piece in the comic just before they get to the farm, that was omitted from the TV show, for obvious budgetary reasons. There's also one major set piece from the TV show that doesn't appear in the first '2 seasons' of the comic. About the only 2 characters in the comic that seem to be somewhat close to their TV counterparts are Dale and Rick. The comic also has a few more characters through the first 12 issues that I've read, and is missing one major character from the TV show.
I can see how people who have followed the comic for years might be disappointed in the TV show. There's a huge disconnect between the two in terms of character development. Don't get me wrong though, I absolutely love the TV show, and I'm greatly enjoying the comic and I think they're both worthy of your attention.