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Sharp LC70LE640U - white line at top and bottom of screen

I finally setup my new 70" Sharp and noticed on many channels a single white line along the top and bottom of the screen. The line is pretty thin, but noticeable. I was thinking that maybe I'm missing a setup configuration to allow the TV to make full use of the screen, but I can't find one. I am using DirecTV as my provider and have the new Genie client (C31-700) in this room, and it is running through an Onkyo TX-SR705 via HDMI.

Live TV (i.e. football games) does not have the lines. Any suggestions or help would be greatly appreciated. Thanks!


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