I started a similar thread a few months ago on the forums regarding how much I love series 8 - and I recently re-watched series 7 for the first time in a few years. I was amazed at how much I enjoyed it - every single episode, perhaps Duct Soup the least - was engaging, interesting, different that what had gone before. Unlike some other RD fans, I actually really liked the fact that the writing had become more 'drama / narrative' first, gags second. I thought this was brave of Doug at the time, and it's a series that hasn't dated aesthetically, the CGI does a fine job, whilst I prefer the model shots - things like that are not particularly high on my list of what makes or breaks an episode. I thought that from a deeper, character development and story arc perspective, episodes like Stoke/Ouroboros were fabulous, and think the Lister being his own father is an interesting and clever take on the whole Lister birth event. It showcases the actors range more than in previous series and I also like Chloe Annette in the role of Kochanski. I think it's a great addition to the RD canon, and ANY series that can change up production values / laughter removed / writing / cast changes like RD has over the years - is not only brave, but expansive and brilliant.