Wow! Thanks everybody! I’m slightly overcome. And listen, torrent away. Just please buy the DVD when it comes out (unless you hate it, of course, in which case that would be mental).
(About 20 comments down, look for the avatar snipped from the header.)
As I said there, TV LOL moments are so rare these days I get a little shock when I have one; and I had several during this episode. I really must buy series one on DVD, I don’t think I’ve seen all of them.