Hi. I have had my et-8500 for a while. My old SAT-TV-supplier didn't offer HD-channels, but my new does.
However a can not se anything when i choose a HD-channel, no sound, no nothing
The channels are visible when I do a search, and the little bar on the right side shows that is is recognized as seen and descambable - but I get nothing

How do I get the channels to function?? HELP!