Black Bars. What's the deal?


I have a 55 inch Mitsubishi wide screen rear projection t.v. I own over 100 DVD movies and most of them are in 2.35 aspect ratio. When I play them I have top and bottom black bars on the screen. When I play the DVD's with 1.85 aspect ratio it fills the entire screen. In my t.v. owners manual it has a page warning you not to leave stationary or letterbox images on screen for an extended period of time and that uneven picture tube aging is not covered by my warranty. Example of these are letterbox top and bottom black bars, sidebar images, stock-market report bars, shopping channel logos & pricing displays, video game patterns and scoreboards, bright station logos and on-line internet web sites. I have been using my zoom function on my DVD player to fill the entire screen when using a 2.35 aspect ratio DVD. A fellow at my local audio video store told me that the black bars at the top and bottom can not burn a lasting image on my screen and when I use my zoom functiion to fill the screen it degrades the picture quality of the DVD. My question is: Will the black bars ruin my t.v or not? Any comments will be greatly appreciated. Thanks in advance.
jondon
Not that it really matters, but I thought it is the illuminated center part of the screen that wears with use. The black bars are not used and thus stay essentially as new.
I sell Mitsubishi Projection TVs. All the current (year 2000 to present) Mitz Hi-Definition series Projection TVs specify in their owners manuals that you do NOT, REPEAT NOT, leave the broadcast standard image (4x3 aspect ratio) picture on a Hi-Definition type TV (16x9 aspect ratio)for more than 25% of the time. You WILL incur phosphor burn-in along the line of the border if you do so.

I agree that the absence of light (or in this case energy), will not cause premature damage to the luminescence coating on the interior of the picture tubes. The problem is: That by consistently blacking out the sides (or top and bottom)of the image you will continuously saturate only a portion of the picture tubes phosphor coating. This partial area saturation will prevent a "consistent degree of burn-in" to the entirety of the screen; resulting in edge lines that will eventually become obvious to the eye. Once these "borders" are burned into the phosphors you will NEVER be able to erradicate them and you will be forced to live with them for as long as you own the TV. In my professional opinion, watch the stretched image most of your viewing time. I personally wouldn't want to gamble away 10 years off the lifespan of a $3000 TV for 15 months of inconvenience.

You will only have to live with this for a couple of years untill Hi-Def becomes the standard TV broadcast format. The manufacturers have told us they expect about 50% of all broadcasting will be done in Hi-Def by next spring. And the Big Guns in the industry, like Sony, Mitsu, Hitachi and Toshiba, will start mass marketing stand-alone Hi-Def Processors for Cable, Satelight and RF Broadcast starting this summer. And the competion for the market should drop the current $600-$800 processor price dramaticly over the next year and a half. This processor will greatly enhance your viewing options and you'll be able to see the knock-out picture that the HD sets were designed for. I watched the Winter Olympics in Hi-Definition last month and it was breathtaking.

So hang in there for a few months. You've got a great TV - don't screw it up.
I have a Pioneer Elite 16:9 TV and only watch DVD's on it and after 2 years I have had no problem with 'burn in' on my screen.I too shared much concern about this potential problem. My advice, pick up a Video Essentials DVD to properly calibrate your picture. Be sure to turn down the CONTRAST as much as possible to lessen the chance of burning in an image.Then quit being so paranoid and enjoy your TV ! As far as high def in a couple years being common place...I have some swamp land in Florida for sale.
Dear Amwarwick:

This is Morbius. You're wrong. The FCC pushed legislation through congress last fall specifying the need for, as well as the general format for a Hi-Definition broadcast standard in this country. To whit:

Any US transmitter, be it cable, satelight or RF TV Transmitter NOT broadcasting in this format By Midnight, December 31, 2005 will be SHUT DOWN on January 1, 2006. Period. This is an official Act of Congress that was legislated into existence. It is not subject to my opinion. Nor yours.

I suggest you contact your congressman before investing in more swampland and drowning in a lack of credibility.
morbius, you are naive if you think (1) that broadcasters will actually be shut down for non-compliance or, (2) that this will be the first time somone has ignored a federal mandate. please get off your high-horse.