Having seen the NHK TV system in question...
I can only say it's bloody good.
To be fair, it was a less than wonderful viewing and listening experience, tacked on in a darkened corridor at IBC last month. And the images selected were very high detail and very high chroma - obviously selected to show it off - but at a first glance I actually thought 'someone's got a glasses-free 3-d system worth looking at...'
The live images from London - a view with which I am intimately familiar, having worked for the company for thirty-odd years - were equally impressive... but I have to wonder just how much image is going to be compressed out of visibility once it's fighting for space on a limited bandwidth channel and a statistical multiplexer over a broadcast system, rather than a contribution circuit.
Mind you, as others have pointed out, the non-technical quality of the broadcasts is going to need some attention, too.