Channel 32-4 Bay Area (which shows Classic Arts Showcase 24/7) no longer has sound when tuned on my HR20. The picture is fine. I do get sound when running the antenna directly to the TV, and it did have sound via the HR20 until about a week ago. This is the only channel with this problem. I found some old posts about some OTA channels having no sound but no solution for mine. Classic Arts Showcase is on channel 32-4 24/7, though it is called "SIGN OFF" in the guide. Dish and Comcast get this channel directly off the satellite and carry it 24/7 but according to the people at CAS, D* declines to carry it even though it is free :nono2:.