If I were PM I'd clear all the journalists and TV crews with their lights and cameras from Downing Street. Apart from when the PM is making a statement from the lectern in front of No10, there is absolutely no need for there to be any press in Downing Street; and certainly no need for networks to broadcast the whole bulletin from there.
Private Eye used to have a feature called 'Going Live', giving instances of reporters broadcasting live from somewhere where there was absolutely nothing happening at that time, and no need for them to be there. Same with all these reports from outside No 10, particularly in the evening news bulletins.