My kids are very young. I'm sure there's a world of horror for me to worry about as they get older.

On the other hand [making a string of one-off episodes], there's a real freedom, because you're kind of reinventing the show every week.

Whenever I tell people I'm a misanthrope they react as though that's a bad thing, the idiots. I live in London, for God's sake. Have you walked down Oxford Street recently? Misanthropy's the only thing that gets you through it. It's not a personality flaw, it's a skill.

'Waldo' was one episode I always felt I didn't quite crack. And weirdly, now that feels like one of the more prescient ones.

I grew up in the countryside . But there's a danger of us romanticizing that. Because when I was a kid in 1982, that's what my parents were saying to me about television and comics and computer games!

I think more and more people became aware that social media was starting to feel like a more toxic space. And, I mean - quite a lot of incidents of people getting very, very angry about all kinds of things and attacking people.

You don't have the economy of scale of building a set once and casting once. You blow up the world, basically, at the end of each episode.