I have never been much into Doctor Who, although David Tennant (as one of the coolest guys on TV) is in real danger of winning me to the cause.

And tonight’s episode on the BBC was a real stunner. Tense, clever, neat… It was nigh on perfect as mild SF/horror TV. The baddies were properly menacing, in a kind of inverted Bugblatter Beast of Traal-way: harmless when you look at them, nasty when you don’t. And according to the currently-playing behind-the-scenes show, they were done with guys in makeup - even though they never move on-screen. Which would be how they managed the menacing not-just-a-mockup feel.