Marooned on Mars

What's everyone talking about? The Waters of Mars isn't a Blink-beater by any stretch of the imagination - I know I really don't get to say this often, but you're all a bunch of pansies. An unknown water parasite that makes people look like Timo Tolkki is good for an episode as far as ideas go, but somehow I felt that it was never really explored as much as it should have been.

The last bit was interesting, to see what's happening to the Doctor as a character in the run-up to his replacement, and it was nowhere near as bad as the Easter special - but I can't help but feel that if Steven Moffat had handled it, he would probably have made people scared of drinking water for weeks.