The Gatiss version. Our intrepid heros, Bedford and Prof. Cavor, are about to land on the moon. Suddenly, a klaxon sounds…
Bedford: What’s that noise?
Cavor: It’s an alarm. Can you read the number?
Bedford: What number?
Cavor: The number of the alarm.
Bedford: It’s … 1202.
Cavor: Oh, don’t worry about that.
Compare with this. Gatiss is *such* a geek (as am I, for getting the joke).