After a power outage, I lost sound on my HD channels only, as well as HD programs I had on my DVR. I have comcast cable hooked up to a Sony HD tube TV (that supports 1080i HD) via HDMI cables through a HDMI switch box. When I power off the cable box and enter into the menu I can change HDMI settings (480i through 1080i) but only get sound on HD channels when this is set to 480i (thus affecting HD picture quality). I have spoken to comcast service reps reset the box over the phone as well as have techs come out, but to no avail. I think this is just a handshaking issue, but can't seem to figure it out. Also, I am able to get sound and picture from my PS3 (hooked up through the HDMI switch box) so I don't think it is the TV. Any help would be greatly appriciated.
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