Yes, I agree. To me the slide happened after series VI. Without Rimmer it just didn't work, then series VIII, whilst having some good dialogue in the cell between Rimmer and Lister it really was weak apart from that. BTE was yet another step down and although it was good to see them back after such a long wait I was in two minds whether the wait was worth it! Series X is back up to what it should be. It may not be quite as good as series I, II, and VI, but it still stands up well on its own and I'm very glad they made it!