White/translucent thick line on top of tv screen?

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New member
Some time after the digital upgrade, I noticed a white/translucent thick line on top of tv screen. Sometimes, it's about 1/4 of an inch in height, and sometimes, it can be as high as an inch. My TV is analog, but I have DirecTV, so the upgrade really shouldn't have been a problem. Is this my TV or something with my provider, or the upgrade?
 
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