This morning I found that CBS (10-1, WILM-DT) had disappeared from the guide on both my HR20 receivers (-100 and -700). Tried a reboot - no difference, so then tried going through the antenna initial setup. It returns with all my regular channels except 10-1. I then plugged the antenna lead directly into the TV and could confirm that 10-1 has its signal at full strength. Whose problem is this? Is it another Tribune related issue? Clearly WILM are still providing the signal, and it can't be a hardware issue if it's dropped from both receivers and all other local channels are still there OK. I still have the same 0x395 that I've had since January. Directv really need to do a major rethink on the way their receivers handle OTA - reading various threads, this is a recurring theme for many, and one that didn't exist with earlier receivers (e.g. Tivo) which based their channels on what was actually received rather than some external "information".