The new issue of Radio Times, out today, includes behind the scenes pictures and interviews about the forthcoming scarecrows episode. The story is based on Paul Cornell's 1995 Who novel Human Nature, now rewritten by him for television. Cornell explains: "The Doctor is forced to hide by becoming human, and it's the story of what happens when aliens arrive to destroy everything and the Doctor isn't there. That's why it's scary.

The Scarecrows are "hessian sacks of malevolence and straw", reckons Cornell, "[and] will scare little eight-year-olds absolutely witless! There's a scene where a whole army of them shows up, and [director] Charles Palmer fills the screen with them! And there's another where a Scarecrow grabs a child holding a balloon. And if that doesn't get them hiding behind the sofa..." Read the full story in Radio Times.