I can throw some light on this after complaining to BBC iPlayer directly.
The green button on my Samsung remote control stopped working around the date of the Queen's demise.
It has never been that great, often getting several "not available" before actually working.
I think a lot of it is to do with the TV running out of memory and needing a hard, power off, restart.
This time, nothing worked.
I could get a restart of the current programme by going to the BBC iPlayer app on the TV home page and navigating to the channel number and restarting there.
I was astonished when I got the reply from the iPlayer support people.
Apparently, in their words, they switch to a special working mode in respect of the audience.
This disables parts of their service and I can only assume that a state funeral is one such event that triggers this mode.
They added that it was a temporary measure but could not say when it would be restored.
Firstly, I have to wonder why something as trivial as the green button shortcut has to be disabled in respect of my or anyone else's feelings or whatever, especially as the restart was available albeit not so conveniently.
This is either a bury bad news day, or state tinkering with the state broadcaster.
As it was, we, the audience, had to sit though wall to wall coverage of the event, enter a state of national mourning and so on.
I had read somewhere that their streaming services had been overwhelmed by requests and turning off the green button was an attempt to put a dampener on it.
I still haven't bothered to check if the green button functionality has been restored, but it just goes to show how far the BBC is prepared to go to manipulate the programming content.
I suspect this is what we might expect if someone like Putin decides to up the ante and starts getting close to letting loose some nuclear warheads.
Putin I can understand, but for a funeral and for 10 days or more?
BBC, treat your audience with a bit more respect.