Advertisements I have never had this specific problem before. It is not a general tuning adapter problem as I do get at least some SDV channels. The channels that won't tune are almost all of the premium channels except one HBO and one Showtime and occasionally a couple on each. No Starz (maybe once in a while one will tune in). Also can't tune into at least a couple of basic cable channels. Spectrum tech was here for two hours without any luck. It affects both my Roamio and Bolt with the same exact problems. I suspect it is some kind of signal problem. If I go into diagnostics it shows the channel that is not being received as no signal strength. Just taking a flyer here to see if anyone else experienced this issue.