Series 3, 9.2 (for awhile), Brighthouse Networks in Birmingham, AL. Working fine (with minor hiccups) for coming up on a year.
Problem: Since Wednesday just some of my analog channels (notably Comedy Central , Sci Fi ) display as a black screen in the Tivo. I haven't done a full test but it seems to be about 5 or so scattered about. If I look at just the tv (which has a coax input as well) these tune fine. My S2 in the bedroom tunes these fine (coax directly in). All of my premium and HD channels tune fine. A reboot does not resolve the issue. If I look at the diagnostics screen, it seems okay (although I don't really know what I would be looking for - the Current Tuning Status is Tuned:Success). This occurs on both cable cards and is consistent (the same channels display the behavior on each card).
My technical knowledge is spare - is it possible these are being broadcast in digitial as well? I have a truck roll scheduled for Wed but technical support can be troublesome (as many of you know) and would welcome any ideas.
Edit: I've just noticed that the non-tuning analog channels are of Modulation QAM 256, while the tuning ones are of Modulation Analog. So who do I tell what at my Cable Provider