Today I have three “legacy” HD-DVRs. My HR20-700 (installed for three years) has developed an odd symptom that I haven’t seen reported yet. When I watch a recorded HD show, periodically the TV picture “wavers” horizontally for about 2-3 seconds and the picture darkens. Ohere doesn’t appear to be any pattern associated with the occurence. It might repeat itself 10 seconds later, or it could be 5 minutes before it happens again. Once the problem runs its course, I’m back to normal viewing. My wife reports that this doesn’t seem to happen during live (not-recorded) viewing. I’m theorizing the following: 1. HR20-700 Power supply beginning to fail? 2. HR20-700 hard disk beginning to fail? 3. Problem with TV (Panasonic HD CRT – 10 years old This ssmptom is isolated to the HR20-700. I’ve accessed it’s diagnostic menu and run all the tests – no errors reported. Any ideas?