[Stuart]

If there was suddenly a story of huge domestic interest, where rolling coverage wasn't appropriate for the international audience, then surely they would break into the BBC One schedule and continue using BBC News resources around the UK.

That was always the case before we had the NC. It worked very well back in the day.

Sure. Using which presenter, which studio, which crew, which producers, which resources? Are those people sitting around 24/7 just in case?

Obviously I don't know what the situation would be, but during the week do they not have the production team for the 1, 6 and 10 already in work and could call people in early to fire up Studio B?