Mark wrote:
Thanks for the info Rich. That's a real bummer. Even in little disasters TV seems to do a better job than radio - even without the picture. I'm guessing that cable systems and will still run the same old freq setup to the end users and hotels will still run pay viewing on the UHF freq's. Will that end when all the TV's are replaced with current HD TV's?
Its a game of available bandwidth which varies per system. Some cable operators are running separate analog/digital, some are simulcasting both, and others are going all digital and requiring people to get a low end box (Motorola DCT700) to watch digital on an analog TV.
Cable companies use QAM modulators for their HD/digital so the "new" basic cable will be unencrypted QAM rather than piping it down the cable in the off-air ATSC format. Most digital TV's these days have a built in QAM tuner for this purpose.