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TVs, VCRs, DVD players, Home Theater systems and more.

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Original Message

understanding digital tuner boxes

Posted by DavidLD on March 18, 2008 at 04:37:17:
ok I have a 2004 Sony RPTV described as "HDTV ready" but this was from the period of time when they were building big sets w/o the actual digital tuners in them. With the right tuner/input signal the TV will have no problem reproducing a 720p or 1080i signal. I'm contemplating buying one of the new stand-alone digital tuners as there are a few digital channels and a few broadcasting HDTV on our raw cable.

BUT on the TV I have the following:
NO HDMI inputs
1 DVI input
2 sets of component video inputs one set I use for the DVD player but the other is open.
My question is..
having not looked at the back of one of the new tuners, I'm not sure what they output as options to a TV set up like mine. I presume there will be always be at minimum an HDMI output.
If I want to pull off a true HD signal to my TV is my best bet to get one of those HDMI to DVI converter cables I see in the stores and go in through the DVI input?

OR will there be a set of component vidio outputs (Py, Pr, Pb) on the back of the tuner box so I can just run these outputs to the unused set of Component video inputs on the TV?

Is one of these options a better way to go in terms of getting a true HDTV signal in 720p or 1080i on my TV?

I think the part I'm lost about is whether a component video signal coming out of the three RCA type plugs from an aftermarket tuner be a true 720p or 1080i signal, or is there something special about a DVI or HDMI connection.