Advertisements I have had my Roamio Plus with Verizon Fios for several years. Things have run smoothly until recently. There are currently two HD channels that receive V52 (Searching for Signal) errors (both are in my subscription, and one works in SD). TiVo shows no signal lock on either. I spent an hour with Verizon tech support and they sent me a new CableCARD, which I installed and activated. However, not only does the V52 error persist, I now receive a V58 (Channel Not Authorized) error on random channels I know I have. I went back to Verizon and, after another hour, was told it had to be the TiVo because the CableCARD was already replaced. I have a hard time believing my TiVo is broken when only a handful of hundreds of channels are impacted. Before I go dropping $1,000 on a new lifetime subscription, I wanted to see if anyone else has experienced these issues and if they had to replace their unit.