need conversion chart for hdtv
We have Comcast Cable and on the TV's with cpnverter boxes, the HD channels are listed in the 200's. On the TV's without a cable box the HD channels are like 12.1 NBC, 12.2 NBC Weather Feed, 78.19 Golf Channel, etc. How do we find a conversion guide so we don't have to scan all the channels and write down the HD channel?? The only listings Comcast provides are the 210, 211 etc listings.