The backlighting in the tv might be going out. that is the first hing to look at. it might also be the liquid crystal display itself. you can look for the backlighting yourself by unscrewing the back panel from the lcd tv. and simply turning it on. you will see if one of the lights is dimmer than the other or just simply out. if you dont want to do that yourself take it to a tv shop and just have them look at it. most tv repair shops coast to coast dont charge to look at it for you. if one does go to the next. they are in just about every city. (checking it for free) hope this is helpful
If you are watching television and you see black lines on the left and right sides of the screen, check to see if you are watching an HD broadcast or a standard definition broadcast. You can do this by bringing up the TV guide menu on your remote. If the show is in HD, it should take up the full screen. However, if it is not HD, bars will be present on the left and right of the screen. That is because standard definition programing is in 4x3, which will not take up the entire screen. If the picture you are watching not only has black bars on the sides, but on the tops and bottoms of the screen as well, your "Zoom" mode has somehow gotten off-kilter. Press the "Zoom" button on the remote until the image appears correct. If this does not work, power down the television, wait a few moments, and power the TV back on. The image should be correct now. If the image on the screen looks stretched or squished, this is because your HD cable receiver is not set up properly for your widescreen television. Press the "Menu" button on the receiver
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the backlighting in the tv might be going out. that is the first hing to look at. it might also be the liquid crystal display itself. you can look for the backlighting yourself by unscrewing the back panel from the lcd tv. and simply turning it on. you will see if one of the lights is dimmer than the other or just simply out. if you dont want to do that yourself take it to a tv shop and just have them look at it. most tv repair shops coast to coast dont charge to look at it for you. if one does go to the next. they are in just about every city. (checking it for free)
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