Well, the Sho channels came back for about 3 hours… and are out again.
We’ve called back DirecTV. They are being very good about things. They say the problem is the dish: it needs to be adjusted, as we don’t have strong signals on all transponders (only 18 and 28 for 101A are above 90%). Although it is 93 days past installation, they are giving us a free service call, and credit until we get Sho back on a regular basis.
We’ll see what happens when they come to service the system.
Update: Sunday at 10:40pm: The receiver in the bedroom just lost a local channel, rebooted, and now all are back. Weird. Perhaps it is a dish or LNB problem. We never had to reboot the receiver at the old house.