Pixelation on various channels after X1 DVR install

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@gm64 wrote:

I have recently installed a X1 dvr to replace my non-dvr X1 main box.  I now have various channels that will pixelate badly.  Most are sports channels like ESPN.  I have already checked all connections in the house as I have not changed anything but the X1 box.  This is the second dvr box I have tried.

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do you have other live outlets? the signal at your location may be from an unneeded splitter. is your modem/gateway near? if so temporarily connect the gateway's coax to your set top box. any change?

The feed comes directly from a Commscope 9 port amp (CSAMPDU9VPI). This amp feeds 8 locations directly. Would like to find a way to check signal db without dealing with a Comcast tech.