[mythtv-users] Re: recording HD content

[Chad]

Hopefully someone who really knows will jump in, but here's what I've
found while trying to learn about HDTV and using a pcHDTV to capture
it (or at least what I think I've learned, again, hopefully someone
will correct anything I am wrong about):

OTA HDTV is AKA as VSB.  Whereas the content that is ran to you via
your cable provider (Discovery HD, ESPN HD...) is known as QAM HDTV. 
Apparently there is some work being done, and people are posting all
over the list on using QAM and it's working just fine for some,
other's are getting there.

So a short answer to your question, assuming my very little research
is correct, would be yes you can.  If I'm wrong, then I don't know :D

Good Luck!

On Apr 12, 2005 12:34 AM, Neil <neil-on-mythtv at restricted.dyndns.org> wrote:
> Hi Joe,
> 
> Joe Votour writes:
> 
> > I don't do HD myself (I guess I'm behind the times
> > with my analog cable), but yes, it can be done.
> > However, if you plan on using a system with a
> > proprietary system (pretty much anything but OTA in
> > the U.S.), then you'll have to use their set-top box
> > to receive (and decrypt) the channels, and then record
> > them on your MythTV machine.  This can be done by
> > Composite/S-Video, coaxial (if your set-top box
> > outputs in coaxial) or (possibly) Firewire.
> 
> Hmmm. I think, if we send out the HD stream via s-video, quality is already
> degraded. Also, quality of s-video is just ok. Is there a way to preserve it
> just like how we do it in Air2PC? Remember, s-video is analog. HD content is
> digital.
> 
> I would like to know if someone is doing this kind of recording. How is the
> picture quality? But will it really be able record the HD content if the
> receiver has an svideo out?
> 
> >
> > You'll also need to have some method for MythTV to
> > switch channels on the set-top - either a serial cable
> > (if supported on your set-top box) or an IR Blaster.
> 
> Yep, I'm currently using a homebrew IR.
> 
> >
> > Also, note that apparently decoding HDTV in MythTV
> > requires a pretty beefy CPU and video card.  You
> > should search the archives for suggestions from other
> > people who are successfully doing this.
> 
> No issues with my current machine since I'm already playing HD OTA content.
> Quality is awesome.
> 
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