|Originally posted by computergeek:
14*9 Can be used to prevent burnin.
14*9 is achieved by adding black bars to 1/16 of horizontal size and clipping 1/16 from the top and bottom
Adjust the overscan on your set to be (1/16 = 6.25 %) and there will be no black bars. My set came from the factory with 7%overscan so once I centred the picture, there ae no black bars on CBS, Fox or ABC in 14*9 mode.
The black bars are more than 1/16 of the screen when one has a 16x9 TV.
In fact, I've changed my mind: 14*9 is a good compromise.We need to cinsider all the HDTV users and not just the the people with sophisticated expensive equipment or HDTV will definitely die. There are more people watching HDTV on 4*3 HD ready sets, computer monitors and front projectors who don't have the control of the aspect ratio that are features of some expensive 16*9 set.
Well... 4x3 is 1.3333, 14x9 is 1.5555, and 16x9 is 1.7777; they are not the same.
Those watching on 4x3 HD ready sets and those with computer monitors and the like will end up watching 14x9 in widescreen mode (since that is how it is broadcast) with black bars on the top and bottom from the software/tuner/STB trying to fit a 14x9 image on a 4x3 monitor. Then there will be black bars on the right and left from the broadcaster.
It'd be like watching a non-anamorphic wide-screen DVD on a 16x9 TV in 4x3 mode without zooming or stretching. In other words, a small picture surounded by black. On a basic 4x3 TV, there are no zoom controls, so Joe 6-Pack with a cheap $250 STB (wouldn't it be nice if they were that cheap http://www.avsforum.com/ubb/smile.gif
)and a 27" TV will have this small image displayed on his small TV and say... WHAT'S SO GREAT ABOUT (H)DTV?
This reminds me of a time when I was in a store and a widescreen movie was being displayed on a 4x3 TV and some lady commented that she didn't the black bars on the top and bottom. Even after I explained the OAR aspects, she still didn't get it.
So now, I've come to the conclusion that 14x9 IS BAD FOR (H)DTV!
For those of you who have a separate STB (my tuner is built in, but I could use the DTV outputs, which will put the 14x9 widescreen material in letterbox, to demonstrate on a 4x3 19" TV, which unfortunately is soooo
cheap that it doesn't have a composite input, I'd have to use the VCR, RF modulator or pull the 27" (i.e. heavier
) from upstairs to actually do it), try hooking the STB to an average 4x3 TV (i.e. NOT
a Sony XBR) and take a look at how 14x9 looks. My bet is that without tweaking (which may not be possible since the STB will have to output at 480i), you will not be happy with what you see: a small picture surounded by black. Realize that this is how a majority of people will be watching (H)DTV. Those with 4x3 TVs and computer monitors and the like.BEWARE THE 14x9