[He's actually listening now, because while people do tell him quite a lot that he's impossible, they don't tend to tell him he's a TV show.]

But - I'm not - I don't wear a scarf! At least not in this - wait. How do you know I used to wear a scarf?

[But he's not waiting for an answer. That's a good use for the sonic screwdriver, right there. He goes over to the telly and points the screwdriver at it, accessing its temporal memory and flicking through the shows that were on the day before.]

When do you say that show was on exactly?