Have you observed the similarity between 'Living In Harmony' and 'The Girl Who Was Death?' I was thinking about it yesterday as a matter of fact. Basically both episodes work on the same lines, one a reality role playing game, the other a fairytale. And in both cases everyone save for Number 6, Number 2, Number 8, Number 10, Number 22, and the three children, are the only one's to actually exist in their relative episodes!
I'll be seeing you