I'm probably going to get email for this, but I've never seen The Walking Dead. I've seen some scenes, and it's been on in the background while I was doing stuff. But I don't watch the show (I can hear you typing already). But I've seen pictures of this RV and this version by Mad Physicist is spot on. Of course, it's not really customized in the show, it's just a classic Winnebago Chieftain, but the level of detail and the care taken to match it perfectly makes this a suburb MOC.
Read more about it on Ralph's post on The Brother's Brick