We're like a bunch of dogs chasing their tails on this V58, black screen, and unauthorized channel issue. I have a Premier XL4 that has been missing recordings do to this issues for months. This problem appears to have started since the last update. I buy a new Roamio Plus and find I am having the same problems. How can a company sell a product that does not work, act like there is no problem and leave it up to the customers to figure out how to work around the issue. Insanity is doing the same thing and expecting a different result. At least people on this site know there is a problem. How many customer service calls do you think TiVo and the cable companies are handling on this issue? Two different Tivos with different cable cards and both are having the same problem.