re-defining HD

[john_1958]

Suggestion since 1080p is truehd and offers more depth detail and eye-candy

would 720p be considered EDTV especially since some TVs are 1024x720p or 1280x720p

also don't like to see blurness in Hd just so they can show more in broadband

[jorg]

i think your right thr 720p should become stanterd and 1080p should be like what digital cable was to analog lol

[thunderhawk]

Oh well, what's HD?
From Wikipedia:

Historically, the term high-definition television was used to refer to television standards developed in the late 1930s to replace the early experimental mechanically-scanned systems that ranged from 15 lines to about 220 lines of resolution. ...

The United Kingdom was the first to start regular broadcast television - the BBC Television Service - in 1936 ..., initially with a 240-line, 25 frames-per-second (fps) mechanically-scanned system by Baird Television Limited alternating with a 405-line Marconi-EMI interlaced system at 50 fields per second (each frame consisting of two fields). The Baird system was dropped after the end of 1936. This was referred to as the world's first scheduled 'high definition' television service, and thus the term must be regarded as originally identifying systems offering 240-line resolution or better. ...

In the United States, the National Television System Committee (for which the NTSC standard is named) standardized on 525 lines at 30 fps in 1940, with regular broadcasts starting on July 1, 1941. The NTSC standard was updated to include first a non-compatible 441-line color standard in 1950, which was then replaced by a compatible 525-line, 29.97fps color standard approved in 1953 and used to this day. PAL (Phase Alternating Line) was developed in the late 1950s with 625 lines at 25fps and went on the air in 1964. SECAM (SÉquentiel Couleur Á Mémoire, French for "sequential colour with memory") was developed by France as the first European color television standard independent to the American NTSC standard, and soon competed by the West German PAL, also using 625 lines and 25fps. SECAM was adopted during the Cold War by France and its colonial territories, as well as the Belgian colonies, and later adopted by countries rejecting the American standard, namely the Soviet Union, the Peoples' Republic of China, and their satellite communist governments.

...

It's all within what people call a definition. Perhaps UHDTV will later be called HDTV, as HDTV now will then be called SDTV. Who knows.
Although I think the original terms will remain, as SDTV broadcasting is still interesting for pocket PC viewing, and LDTV for cellphone viewing, whatever.

[Deciazulado]

Just to add a note that NTSC 525 means 486 active picture lines and SECAM/PAL 625 mean 576 active picture lines.

France had a B/W 4:3 system of 819 lines (755 active) before getting SECAM color! B/W HDTV in Français

[jorg]

i wounder what would be hd know if we went with the french system lol