I have the Roamio Plus, and was tapping the "Live TV" button this morning to switch between tuners, just to make sure they were all working. Five of the tuners work fine, but the sixth tuner gives me a "Channel not authorized" message, even for channels that I know I have. I tried this with 3 or 4 different channels. Is this because of the Mini I have in the house? Will the Mini hold onto that tuner in a situation like this, where it isn't essential to the Roamio? We last watched that Mini before bed last night. It's fine if it is, but I want to make sure that my Roamio isn't defective.