Japanese HD tech promises 4x 1080p resolutions.
"OK, so you've bought a new plasma or LCD, it's cost you an arm and a leg, and you're waiting for Channel 4's hi-def transmissions to boost your viewing pleasure.
So far so good. But also be aware that there are some serious developments taking place in R&D labs around the world, all designed to make your new TV set obsolete.
Here comes Ultra HD
Those clever folk at Japan's public broadcaster NHK are leading the charge for 'Ultra HD'. This is a spectacular 4,000-line system (compared with HD's 720 or 1080 lines)."