I just purchased this from Costco. I can't get the scan feature to recognize any of the supposedly free HDTV cables that are supposed to come through the cable. My neighbor has a Sony Bravia and during his initial scan his TV detected all of the local NBC, ABC CBS etc. HDTV as ch 4.5, 7.5 9.5 etc. I have the cable direct input to antenna A just as he does yet I only seem to detect analog channels and no digital channels. Does anyone have any advice on things I might try. This TV supposedly has built in ATSC HDVT tuner so I would expect to find these over the air free digital channels. I notice when it gets done the analog search 1-137 it seems to only search on the digital search for channels it did not locate a signal on during the analog search.