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Black & White after X1 Install

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Black & White after X1 Install

I had  several new cable boxes installed yesterday.   2 of those boxes were a good distance from the TVs they control— for example, the cable box is in a closet, while the TVs are hung on a wall across the room, giving a clean, “no wires” look.  But these TVs now do not display in color.  They’re streaky, and only show black and white.   The technician who installed them didn’t have a good explanation.  Does anyone on this forum have ideas as to what’s going on and how to effect a repair?

Official Employee

Re: Black & White after X1 Install

Have you done any troubleshooting yourself yet? Try resetting the boxes? Make sure all cables are seated properly?
How are the boxes hooked up?