I only half agree Keem (which is at least a step in the right direction). Thought the first one of the second series was fantastic, second was shite and the third was ok. Wish I'd known series 1 was being replayed before series 2 started and I'd have watched it again. It was all a bit weird when it first started with the words popping up on screen etc etc but now the first one would probably be better than it was at the time.
Certainly clever stuff