You could also get an HD capture card and leave the cable box out of the loop. This will also only get you OTA channels (whether the signal is QAM from the cable line or from an antenna).
As far as getting HBO, TNT, etc. onto your Myth box in HD, you are more than likely SOL.
The cable box will downconvert your HD channels to NTSC and put them on the S-Video output, which can then be captured by one of your Hauppagge cards. This offers marginaly better picture quality than capturing the analog versions of these channels straight from the cable line, but it will still look like crap on your TV.
At any rate, search the archives for info on this topic, there is plenty there.
On 12/18/05, Matt Goebel <[EMAIL PROTECTED]> wrote:
Hi,
I've just bought a new HDTV and switched over to a HDTV cable box from
my cable company (Bright House Networks). They gave me a Motorola
DCT6200 DVR for two months because they were out of plain non-DVR HDTV
cables boxes (DCT5100's I believe is what they are using for that).
So now I'd like to hook that into MythTV to record HDTV content in 720p
HDTV format (what my TV supports). What's the status of HD recording
under Linux? Is this possible yet? I know you can do OTA HD
recording.. but can you do QAM now too if you run everything through the
cable box first? I'd like to record HBO,TNT,OLN, and Discover HD in HD
in addition to the local channels I can get OTA. If it's possible which
HD card would I need? The HD-3000 or Air2PC etc...? With the DCT6200
I'm pretty sure Bright House doesn't offer a coaxial output even though
the box supports one. That kills that one I think. I plan to get a
plain DCT5100 anyway though.. which hopefully does have one. If not is
there someway to record in HD with Component or IEEE1394?
Also if none of this is possible would I be able to at least us the
Svideo output to record in 16:9 DVD quality? I have 2 PVR-250's and a
PVR-500 which are both supposed to support up to 720x480 if I'm not
mistaken.
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