Been running my XL now for about a year on TWC with a tuning adapter and have had the normal "quirks" regarding loss of signal periodically on switched channels. However the last couple of weeks a new problem seems to have surfaced where channels that I don't think are switched (e.g. ABC) suddenly won't tune and the typical TiVo floating error message you see when the tuning adapter is failing does not show. The screen is basically black, if I toggle tuners when I get back to the black channel all I see is the TiVo progress bar on the bottom with the paused icon (hitting play doesn't help.) Multiple channels are impacted though not all of them. Unplugging and plugging the TiVo fixes the problem immediately. Though things feel "sluggish" after the reboot for a little while. I feel like this may actually be something on the TiVo end rather than the series of other issues I've dealt with related to the tuning adapter and cable card. Any thoughts? Thank you kindly.