I’m going to have to watch that again before I can write anything coherent, partly because I was so engrossed that I stopped taking notes, but mostly because I need to see it again. And possibly again, too.
A big ending to the series, which resolved the story nicely and solved an intriguing question that’s been lingering for a while.
Oh, and a nice teaser for this year’s Christmas special
I’ll get on with my proper episode reports soon. Actually, by leaving them, I’ve saved myself having to rewrite one of them in the light of later events. All part of my cunning plan!
 So big, in fact, that it was ten minutes longer than usual
 All will become clear eventually