I live in Colorado and have two Directv Tivo boxes - an HD10-250 and a Phillips DSR7000 and both have DVR upgrade kits. Sometime around the end of March both quit receiving signals for local channels 4,7,9 but they continued to show up in the program guide and display the information banner along with a blank, gray screen. Other local channels including 6,12, and 31 were still available. On the morning of March 30th channels 6,12 and 31 disappeared from the program guide of the DSR7000 at about 10AM and later vanished from the HD10-250 guide in the afternoon. The current status is 4,7,9 are in the guide but no signal; 6,12,31 are not in the guide and show up as unavailable if selected and I can receive 2,3,14,20,25,27 and 50. I should also mention I have a DTV HR20/700 hooked up to the same antenna and multiswitch and its working normally and receives the full guide and all the local channels in both high and low definition. In spite of numerous calls to Directv support, system resets, re-authorizations, and repeated guided setups nothing seems to fix the problem. Directv said all they could do is replace the old Tivo boxes with their home grown POS or send out a technician. I opted for the technician and without even looking at the boxes, he said they have had several calls on this problem (they started last Friday on 4/1/12) and they have been told all they can do is replace the old Tivo boxes with the DTV home grown POS. Anyone having similar problems or know anything about this other than it sounds like a plot by DTV to get rid of old Tivo accounts?