I have a Dish 612 DVR in my bedroom and a 722 DVR in the living room with another television in the basement that gets a signal from the 722. Every night around 8-9 pm the 612 loses its satellite connection and it doesn't come back online until morning. The problems started on an occasional basis after we got HD, but now it is every friggin' night. The 722 and the set downstairs are fine. The Dish technicians can't understand what's going on. Any ideas?