Watched it the other day on Dave/UKTV's online service, thought it was alright. Not one of the best, though I did like the science speakeasy ("Wanna go round back and talk about Relativity? Special will cost extra"). One criticism I have in general of Red Dwarf, especially since Rob Grant left is that it has these big ideas and spends a long time on the setup and very little on the resolution - had the same thought about the one I was in the audience for (penultimate episode of series XI)