Was discussing the issue a bit in this thread. What I have found with my testing is I have different channels missing on different tuners on my multistream cablecard. For example, I have 4 tuners recording, I put tuner 5 in ch 1120 and tuner 6 on 1100. I move up or down on one tuner making sure I don't get onto the same channel (as I don't want to accidentally switch tuners) as the other and make note of the channels I am getting. I will be missing ch 1109 on tuner 5 and ch 1117 on tuner 6 but get ch 1109 on tuner 6 and get ch 1117 on tuner 5. When I don't get the channel, the screen is just black without any message. I had the cable guy here for 2 hours switching CC's and TA's and he left while I was still having issues and scheduled somebody to come out the next day. I didn't know of the missing channels are per CC tuner until he left and did some more testing. So, has anybody heard of this happening before and what can be done to fix? I need to narrow down the issue to the CC, TA, or TiVo Roamio Plus. The only thing I have switched out is the TiVo but the issue doesn't seem like a TiVo issue to me. FYI - I have a TiVo Elite in the other room and have switched the TA and it didn't seem to help.