I find it amazing how Matthew Graham and Ashley Pharoah have managed to pull off this series. After so much scrutiny from the public before it's release, it was sure to have cringworthy moments and scenes that cloned Life on Mars. But instead they adapt characteristics and settings to that of the early 80's (which after all is why we watch the show), with great ease and you really do get the idea that time has carried on in the years between the two series, rather than it just being a clone of the previous.
The main differences are of course in the settings, the town and decade, but also in the character progression of Gene, Ray and Chris and the introduction of Alex Drake, the tormented but very different and witty, sophisticated main character. Keeley Hawes creates a sarcastic reaction to Alex's new surroundings which is almost a refreshing change from the intense nature of Sam Tyler. Once again, Phillip Glenister begins the series with a bang: "Tonight, my friend, your diary entry will read, 'Took a prozzie hostage and was shot by three armed bast***s." Welcome back everyone.