Sound to me like your cable company is not really giving you "digital" cable on those channels. I am not familiar with that cable box but if it does work with the channels above 210 then its not an issue with the Tv. If there are not sending out your digital signal on those channels and your box is not converting the analog to digital then of course, No sound with HDMI. Which also means theres a chance you wouldnt get sound with any other digital connection but that just doesnt make any sense.
Since you are only sending the audio to the tv you can just use the analog audio outputs from the cable box into the tv. Most tv's have a thing where you can select if the audio comes from the HDMI or another source. If you are eventually going to hook it to the reciever then you can try whatever digital connections the box has so that you'll get the surround sound on the HD channels but if that doesnt work sounds like its stereo for you!
Also, You can use the component video connection for HD as well. Component is fully capable of carrying full 1080p signal. Although you wont find anything that will output that type of signal over component you can still get HD.
Last edited by Haoleb; 07/31/08 02:37 AM.
