How did ITV cover the silence?
They opened with A special graphic with no audio, Alastair Stewart presented. It closed at the very end of The Last Post.
Channel 5 I believe has Julian Druker present (he has presented it in the past IIRC. It ended just before the end of The Last Post with no end board. Differently to ITV, they showed LIVE's from various locations with I (apologise for guessing) believe usually they do.
My contribution is small but you are welcome.