I have another thread going about my signal problems that started today. Basically I'm only getting a good signal with no 771 message on HD locals. I have SD receivers in other locations. Right now the one I'm in front of is making lots of noise, presumably trying to get a signal. My question is this: will it damage these receivers (especially the DVRs) to use them to watch recorded content, since they're unusable otherwise? Or should they be completely powered down until this is resolved? While I'm playing back recorded content, the blue ring is constantly spinning, which seems bad. Please advise, someone! Thanks.