I thought I was where I wanted to be. I've lurked for years, and finally made the investment (got the permission !). Got my Denon 3803, a full set of Boston Acoustic VR-M (VR-MC, VR-M60s, VR-M50s, PV800) speakers to go with my Mits 55857 and Toshiba 5109 (from several years ago). I'm loving life. Then within days Comcast comes out with a deal for me to move to their HD package. Too good to deny. I am thrilled with the sound, and the HD picture is great. (The "lower" channels leave a bit to be desired. Also, waiting for more HD content - like CBS, PBS, DiscoveryHD, ESPN-HD.) Anyway, enough "sharing" - here's my problem. When the Comcast installer came out we had a DD5.1 signal on the cable (when transmitted). I couldn't have been happier. However, now I can't seem to get anything from the cable to be detected by the Denon as a digital (let alone a DD5.1) Everything is detected as analog. The audio runs from the Comcast box to the Denon via optical cable. Of course, when calling Comcast they insist that my problem is with the Denon. They may be right - I could be experiencing a cockpit error. I figure the first step to determining the source of the problem would be if I could somehow "see" if Comcast's Motorola box has an indicator of the type of audio signal it thinks it's sending. Its not worth pursuing if I don't know that I've got a 5.1 signal, right? Other ideas? You can see I'm a semi-newbie. I could have screwed something up. I do get some unintended consequences from the interactions between my kids & the remotes. Thanks in advance, Michael PS - Sorry if this is in the wrong thread. I tried all day to search for other similar problems, but couldn't use the search feature.