There's nothing Gary Russell hasn't done - he's acted (not in Doctor Who, bar Big Finish, but he was Dick in The Famous Five), written, directed, edited, script edited, novelised ... the lot. And now, lucky for us, he is a guest on Happy Times and Places, and he has chosen one of the most celebrated Doctor Who stories of all time. There's an embarrassment of riches, but can your host Toby Hadoke sift the Lucanol from the ... er ... breakfast cereal type stuff that the Doctor ends up covered with at the climax? It's going to be enjoyable, this one, but choosing just one good thing about it? That's going to be murder.