Hi Charles:

For a year or so I've been watching DVD movies on a progressive scan big 
screen TV and MUST say it's fantastic.
Progressive scan means that the whole frame is scanned each 1/60 sec 
(I'm in the US) instead of two frames in 1/30 sec.
This takes twice the bandwidth to the screen, but all the information 
needed is contained in the NTSC video because of how movies are 
converted to TV.  The interface signals are analog.  If you are still 
watching movies on an interlaced screen or from tapes you are missing a 
lot.  Also a movie shot in 16:9 needs to be "scaned & paned" to get it 
into 4:3 format and a lot of information is lost.  A movie is best 
watched in it's native aspect radio.

A neighbor has a very large plasma screen and a special satellite 
receiver that has a dual feed.  By tuning to two channels and combining 
the signals he can receive 16:9 format HDTV images.  I think the video 
is in digital format on a FO cable, but I'm not sure about that.

This from someone who lives in the forest and has no TV, only movies.

Have Fun,

Brooke Clarke

w/Java http://www.PRC68.com
w/o Java http://www.pacificsites.com/~brooke/PRC68COM.shtml
http://www.precisionclock.com

>Date: Sun, 26 Nov 2006 19:19:28 -0500 (EST)
>From: Charles Craft <chucksea@mindspring.com>
>Subject: [EE]: Aspect ratio in analog TV signal
>To: piclist@mit.edu
>Message-ID:
>	<9534116.1164586768393.JavaMail.root@mswamui-bichon.atl.sa.earthlink.net>
>	
>Content-Type: text/plain; charset="UTF-8"
>
>Should probably do this over on one of the TV forums but coming at it from the bottom up here.  :-)
>
>I've got a satellite TV receiver that can be configured for 4:3 and 16:9 aspect ratios.
>Video outputs are RF (Ch 3 or 4), composite video? (RCA jack) and S-video.
>
>When you change the aspect ratio of an analog TV signal does it keep the same number
>of scan lines and cram more "pixels" on each line? Would all of the analog connectors
>above support the different ratios or would some only support 4:3?
>
>thanks
>
>
>  
>
-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist