In the short annals of Monday joys, this might have a permanent place.
For it seems that as Britain watched its BBC News today, some citizens could not believe their eyes.
I am grateful to YouTube poster Ben Bristow, who captured the event for, hopefully, an infinite posterity.
As a fine and wise lady presenter called Caroline talked about apologies and financial costs, the rug seemed to be pulled from beneath her.
Or, perhaps, a trapdoor opened up because she'd said something wrong.
Or, I suppose, there might have been a tiny glitch in the camera or its operator's head.
Indeed, when she handed back to her fellow presenter, the latter offered, with very British lack of feeling: "We had a problem with our camera there at the end."
Well, let's hope no one noticed, madam.
There is something reassuring in being told, by an entirely straight face, that your fellow BBC News presenter has not, in fact, been eaten by a ravenous octopus.