It’s very different for each show. With Doctor Who I’m thinking of how I can get people to be scared I suppose: what’s the monster this week, what’s the adventure, what’s the fastest way we can start the story, how soon can I get Matt Smith running is probably the focus there. With Sherlock it’s different because Mark [Gatiss] and I sit around wondering which one are we going to do this year, which bits of the original haven’t been touched.
Steven Moffat on the difference between writing ‘Doctor Who’ and ‘Sherlock’