OK, this is an old thread but it appears to be about similiar issues, I have the latest X1 small box model # PR150BNC remote XR5 v4-R. I just purchased the Harmony ultimate home universal and it controls all of my denon equipment, samsung tv but it will not control the X1 box? I put the make "Xfinity" and both correct model above "pr150bnc" and "X1" and it still will not control the channels either via touch screen or channel up/down. Can someone provide assistance?
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