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Twayne

wrote:
There are many digital circuits on most electronic equipment.

High Definition is one of those digital circuits.

Actually, High Def has nothing to do with whether the cktry is digital
or not. A set can have ALL digital components in it but still only be
capable of managing analog TV signals. It's the TV signal that becomes
digital for HDTV, so the set requires a tuner which is capable of
receiving and handling digital signals. And it will of course, use
digital components; it'd be a bear to design an analog digital TV signal
receiverG.

Your 2004 TV is not HDTV capable. The antenna amp is fine.

Well, it's definitely unlikely, that's for sure. As someone mentioned
though, the converter boxes to convert digital signals to analog signals
will shortly be plentiful and at reasonable prices.
Currently used antenna systems etc., should all work fine for
digital signals as they are all in the same UHF bands as used today with
only a few remaining in the VHF band. So if you currently can receive
UHF you'll be fine for digital TV signals. I mention this only because
I'm starting already to see some ads hyping special antenna systems for
the "new" HDTV switch; those are ripoffs for the most part. I've also
seen converter boxes already hyped for as much as $299; a clear ripoff.

Just for clarification, DTV and HDTV are technically two different
animals too. If you have HDTV then you have a DTV but if you have a DTV
it will receive HDTV signals but might not display in the expected wide
screen formats and not with high definition. However, a DTV can still
at least receive the digital signal formats as a rule.

Usually if an older set is really HDTV capable, it will have two
separate antenna input jacks which connect to two separate tuners, one
analog, the other DTV. If a set does not have a digital signal tuner,
then it can not receive HDTV.