I have a similar problem here in Sacramento. If I scan for all local digital stations, all of them appear (3, 6, 10, 13, 31, 40, & 58 plus some Spanish language channels). When I select all of them to 'Save,' they all show up in the All Sub list. I can then add them to my favorites list. So far, so good.
The problem is with Channel 6, our local PBS affiliate. It is broadcasting on 06-1, 06-2, 06-3, and 06-4. Once I select anyone of the 06-x stations, it comes in just fine. However, if I flip down/up to the nearest station (3 or 10), Channel 6 just drops out of the system completely! I have to go back and manually add it in. If I then tune to it again, same-o same-o.
Anyone else observe this or a similar bizarre and concerning phenomena? TIA!