OK, a few points about this undoubtedly interesting technology story in which television is going into 3D. I'm writing about it for one of the National Press in the UK so I can't go into depth but here are a few first impressions from the demo on Tuesday, now that we're no longer under embargo.

1. I've seen 3D demonstrated without glasses. The nwew technology needs glasses. I already wear glasses. There aren't any plans for slipover glasses. Go figure.

2. If there's a glasses-free alternative people will adopt it in droves.

3. At all of the demos I've seen of 3D TV there's one thing they share in common - everyone talks about how great it will be to 3D-ify older TV content. Can people just get real about this? In my youth in the eighties a load of people spoke about colorising old movies like Casablanca and Laurel and Hardy. It bombed, completely. 3D is more of the same only moreso.

Frankly I can see this working but only in niches (sports are spectacular, I concede with pleasure) and only once all the programme-makers have adopted and exhausted other opportunities like Super-HD, which just makes things look real. Nobody's filming in that technology for mass broadcast just yet, and if people aren't looking at flat images in extreme HD just now then they're sure as hell not going to shell out for yet more technology they may or may not want so they can see it all in 3D.

Add the recession into that mix and you can gather this revolution isn't going to come around to the mass market in a very long time.

The BBC's report is here.