nephel on 07 September 2007
| PeoplesChamp said: Hus said: Something like 50 million hdtv in us by end of 08, more and more hd programs are available. 1080p tvs the standard by 09 I seriously doubt 480p will be standard by 09. 1080p probably in 2011 |
480i and 576i are standard definition.
480p and 576p are enhanced definition.
720p, 1080p, and (ugh)1080i are high definition.
(except in Australia, where 576p is also considered high definition)
Enhanced definition will never be mainstream because it was too little of an improvement and has been eclipsed by better technology.
1080i was not originally part of the specification, but certain tube based television manufacturers found it too difficult to put more than 540 scan lines on their televisions and came up with 1080i so that they could do high def too. Unfortunately, the standard was altered to include it.
