Cinelinx: "The Walking Dead is returning this Sunday and the excitement from fans is palpable. AMC knows this and has been airing a Walking Dead marathon leading up to the premiere. The marathon started at episode one and will lead right up to the season four finale. Watching all the way from the first episode, it’s impossible not to notice how dramatically the characters have changed throughout the series. Let’s take a look at the primary group and how they’ve evolved."