[mythtv-users] Choosing a HDTV for myth usage

[Michael T. Dean]

On 08/16/06 20:23, Steven Adeff wrote:

>On 8/16/06, Craig Partin <cpartin at gmail.com> wrote:
>  
>
>>So assuming quality wiring and the absence of ground loop problems
>>then VGA is as good as DVI for feeding signal to the TV, particulary
>>HD signal?  There is no loss in the D/A and A/D conversions?
>>    
>>
>in theory or practice? In theory, yes, DVI is better, its most likely
>all digital (who knows really, its all down to the components and
>design) which means no a/d-d/a noise. BUT, in practice, the noise is
>so negligable that you won't notice a difference. Now. If your doing a
>500ft cable run....
>

you'll want to use VGA or Component (with a /very/ high quality cable or 
some sort of amplification).  Doing so, you'll get a picture (perhaps 
with /a lot/ of noise).  However, using DVI, you won't even get a 
picture.  :)

Of course, if you took the SDI signal from the DVI output and ran it 
over your own custom-built 500-ft long coaxial lines, you may in fact 
get an image with no noticeable quality degradation even over that 
distance.  Unfortunately, a 500-ft DVI cable won't work, though.

But, your point is /definitely/ valid.  For the lengths of runs in a 
common installation, there's no real difference.

Mike