I can’t work it out yet. I really like Peter Capaldi but I’m worried that he’s really unhappy. It’s not just that he’s darker, it’s like there’s no joy at the moment. You always thought that David Tennant had this deep unhappiness underneath but was trying to be joyful to distract from it. With Matt Smith there was the sadness but always a sort of wistful playfulness. With Peter Capaldi you just feel he’s deeply unhappy. I am really worried that Dr Who is too unhappy. I like the cantankerous bit. It’s not the grumpiness. It’s the bleakness.