OK, you knew that I would have to have my say on this. Actually I need your help.
The first I knew of this 'discovery' -- of Nero's famous dining room -- was when I got an email from the World Service, wondering if I had a view which could be broadcast. As it happened, I didn't (I had other things on today, even though the World Service is always worth helping out).
But I still haven't worked out what it was that had been 'discovered'.
The basic 'facts' go back to Suetonius, who claims in his 'Life of Nero' that in the famous 'Golden House'. Nero had some kind of revolving dining room: there were, Suetonius says, "dining rooms <plural> with fretted ceilings of ivory, whose panels could turn and shower down flowers and were fitted with pipes for sprinkling the guests with perfumes. The main banquet hall was circular and rotated day and night, like the heavens."
This vast palace took up huge tracts of land in the centre of Rome, but it has always been a bit unclear exactly what it looked like, and how far you could match up the literary descriptions with what remains on the ground.
And as usual there was a terrible temptation to equate what we can see with what the Romans
I was always told that the "octagonal room" (in the picture) in the excavated area was what Suetonius was referring to. How exactly it rotated, or what rotated, is anyone's guess. But obviously that's been a bit massaged (or forgotten) in the new story.