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1) It has a built in light sensor that you can turn on/off. With it on I have not had to adjust it wether the room is brightly lit or dark. 2) It depends. I have Charter Cable and some channels are better then others. 3) With firmware updates I don't expect this to outdated for 7 to 10 years.
Sorry, there was a problem. Please try again later.The TV has a setting where it automatically adjust brightness based on the brightness of the room it is in.
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