[mythtv-users] pcHDTV 5500 - NTSC and QAM?

[Steven Sartorius]

Hi,

I'm looking at upgrading my current Myth setup (SD only, version .18)  
to something capable of handling HD.  I'm a Comcast analog cable  
subscriber and recently picked up an external HD tuner (a Samsung DTB- 
H260F) to see what I could get via QAM off my coax.  There's enough  
unencrypted HD content (all the local OTA channels, DiscoveryHD,  
Universal HD) that I'd like to have the option to record in either HD  
or SD.  A little research turned up the pcHDTV 5500 -- a QAM capable  
card with both ATSC and NTSC tuners.  My question is (of course!) how  
well does it work in Myth?  Specifically, is anyone using the card to  
record both HD and SD (not at the same time of course)?  If so, how  
does this work?  Do you specify two different inputs to Myth? Does  
the card show up as having two different tuners? What's the quality  
of SD capture?  Any insight into the nuts and bolts of how the 5500  
handles both QAM and SD would be much appreciated...

thanks,

Steve