If you don't "get" it, leave the thread, as you obviously don't have a basis for an opinion on this show or the film that spawned it...
It's essentially a sequel to an award winning film, arguably one of the best British films of the past few years, and written and part-directed by Shane Meadows who is one of the best and most recognised British directors around at the moment, so why wouldn't there be a fair few people anticipating to appreciate it?
I wasn't actually expecting to like it because the end of the film didn't leave me thinking "i want more", so it's not like i would have enjoyed it regardless. I enjoyed it because it was good, therefore i appreciate it as such (as do others).