[Dougal]

Just a minor thing, but these photos from BBC NI's pres suites show that there is a breakdown slide in the style of the special idents

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What's interesting about this image is the name given to the ident. If you zoom into the computer screen on the left you'll see that the ident is referred to as "Purple Lion Event Ident". Operation Lion is the overarching codename used for any death involving a member of the Royal Family (London Bridge is component of Operation Lion, just as Overstudy, Unicorn, etc. are components of London Bridge).

It shows a level of coordination between Government, the Royal Household and the BBC on these matters - presumably just to simplify things.