[Keith]

Is there a reason they’re giving extra work to Washington instead of keeping it in London? Is it cheaper? Is it political?

I seem to recall it being mentioned (either here or on TV Live forum) that staff working overnights get additional rest time and/or pay for working those hours. By using Washington and Singapore for (UK time) overnights with the time differences it presumably translates to normal working hours in those countries, which in turn presumably gives a reduction in staff costs.