This upcoming one is deemed "Must See" by pretty much everyone in the domicile at this point.
Love TWD (except while some say "why not drive a bulldozer", I'm constantly saying: "Why not just put on some motorcycle leathers, a helmet and let's see the fraking things try to bite through that!") - I read the comic before the series started but I love the way they've adapted and modified to suit TV.
Definitely one of the top 10 shows on TV at the moment. Probably even top 5 for me. I certainly hope FTWD is a value add rather than some sort of "Joey" sucktastic event trying to capitalize off TWD's prowess and people's furvor for more BRAIIIIINNNSSSSS (or horse flesh, or whatever they can get their undead hands on). I trust in AMC a bit. They delivered with Better Call Saul as a spinoff of Breaking Bad, I would think they won't deliver a POS as a spinoff of TWD.