High definition gaming is a highly subjective term. You can find these words boldly written accross your 90's era Sega Genesis and all over the packaging of the PlayStation 3 boxes piled up at your grocer's freezer. While 1920 x 1080 graphics may be the pinnacle of what we spooge over today, a new technology called Super Hi-Vision.
Source: destructoid.com
Obviously, don't make any shopping plans. IGN's Gerry notes that the technology will not be available for a few decades, but it's nice to know what the PlayStation5, Xbox666, and The Phantom might offer in the future. :blah2:Nippon Hoso Kyokai (NHK-Japan's national TV network), the recently unveiled Super Hi-Vision standard features a video resolution of 7,680 x 4,320 — 16 times higher resolution than 1080p. NHK was the original originator (in 1969) of the HD standards we know and love today. Just as it took a solid 30-years for our current HD technology to become available to consumers, Super Hi-Vision is unlikely to be gracing home theaters any time soon. Merely capturing video in such high resolution requires new imaging sensors which NHK only possesses in prototype form at the moment.
Source: destructoid.com