Advertisements I'll post this to hopefully help anyone else who encounters the dreaded missing Contour HD channels issue (the old Plus Pak) on a Cox Motorola system. I see it has come up a couple of times before without a clear resolution and with MoCA issues mixed in to confuse the issue. For simplicity I decided to get my new Roamio Pro working by itself first before dealing with any MoCA setup at all. After doing the initial Roamio setup and pairing the CableCard (painless), I verified that I was receiving all the same non-Contour HD channels I had gotten previously on my old DCX3400 DVR from Cox. So far, so good. Next I followed the Tivo website's instructions for connecting the Moto Tuning adapter, which turned out to be my fatal mistake. Those instructions say to remove the coax cable from the Roamio input and move it over to the TA input, then connect the TA coax output back to the Roamio input. After doing that I still had the channels I had before, but no additional Contour HD channels showed up like I was expecting. Spent lots of time on the phone with a Cox support person who unfortunately was clueless about the fact that anyone with a CableCard/TA/H.264 receiver combo shouldn't need a Contour box or Contour service for those channels. I eventually gave up on that effort and hung up. As a new Tivo user, it took me a while to find the diagnostics and get comfortable with the multiple tuners report format. I eventually discovered that all the "problem" channels were above 900MHz and those signal levels were very rolled-off compared to all other channels which were below 750MHz. I tried swapping-in a 2GHz splitter in place of a 1GHz one upstream just to be sure the splitter wasn't running out of gas, but it didn't improve things at all. I was stumped. Then two things occurred to me at about the same time... 1) that I would eventually need to bypass the TA with another splitter anyhow to have the MoCA bridge in the Roamio, and 2) I remembered the Cox self-install instructions for the TA did NOT have the coax path passing through the TA. So, I put in the splitter before the TA and presto change-o, the Contour HD channels popped right in. Turns out the TA was attenuating the signal overall and also rolling off those 900MHz+ frequecies relative to the others. Lesson learned, I could have saved a lot of time if I had followed the Cox self-install instructions for the tuning adpapter rather than the instructions on Tivo's website.