Don't get upset with your current HD TV. The enormous resolution trial broadcasts of London 2012 are designed for public places, with the BBC and Japanese network NHK giving crowds a taste of the HD of the future.
NHK has been trialling the Super Hi Vision HD system for quite some time, which is its own invention capable of 4000 line broadcasts with 24-speaker 3D audio support. In cooperation with the BBC, it'll be installing three 15 metre high screens in public places within the UK, which it's hoping to put in the BBC buildings in Glasgow and London, with a third in Bradford's National Media Museum.
There's no huge rush to prove it up, though, as even NHK, which is keen on pushing its own next-gen HD system, says this technology is unlikely to hit the market until 2022 at the very earliest. [Engadget]