[Stooky Bill]

It's more complicated than that. Operation Lion is the name given to the plans for any royal death. It includes all of the Bridges ops, Operation Unicorn and a couple of others (Overstudy being the obvious one). They are all overseen the the Bridges Secretariat within the Cabinet Office and the Earl Marshall's Office.

There isn't strictly an operation to cover the days in between the death and the funeral. It's all part of either Operation Unicorn, Operation Overstudy or Operation London Bridge. In this instance, it was a combination of Unicorn and London Bridge.

The plans are shared with broadcasters, etc. to facilitate coordination and to make things run as smoothly as possible. There's a screenshot somewhere on here of a control room in BBC Northern Ireland (I think) showing the heading for Operation Lion.

Yes, everything from D+1 (the day after she dies) to the end of the funeral was planned out, so that's everything from her journey back from Scotland, the proclamation, lying in state, the Kings tour of the nations etc. The TV companies had plans and resource bookings in place for a long time. 

The only vaguery when it happened (for a while at least) was which day was D+1. It was announced late on the Thurs ay so D+1 could have been Saturday. Nothing could be comfirmed until the Palace confirmed when it was. 

The only thing that wasn't and couldn't be planned was the day of the death itself. Ironic really as its the bit that was the most rehearsed. But as was said in the Channel 5 documentary you can't know how that's going to pan out