[mythtv-users] suggestions for pci-e nvidia 6xxx for 1080p?

[Brian Wood]

On Sep 20, 2006, at 10:06 AM, Steven Adeff wrote:

>
> Well, a lot of markets are taking SD source and putting it into the HD
> stream, but it remains 4:3. this is because the programming isn't
> itself done in HD. Usually though the signal this way is much better
> than analog, since their feed is digital so the quality is about as
> good as one can get. It does make recording sports done this way a
> plus.
>

Of course the signal remains 4:3. You also see a lot of switching  
back and forth when they have a 1080i program and run upconverted SD  
commercials in it. You see a lot of non-HD clips on the Letterman  
show even though the studio segments are wide-screen as an example.

I guess you can't expect everything to change over all at once.

The digital signal may or may not be better. If you are in the City- 
Grade contour it usually is, but if you are a ways from the  
transmitter you often get a worse signal, especially since many  
stations have gone cheap and are using less than full authorized  
power. The propogation characteristics of UHF also differ greatly  
from VHF out at the grade B contour. Rain fade and other things can  
become a factor.

For example I am 100 miles from Denver and can pick up the VHF  
channels pretty well, but forget about the UHF digital signals, which  
I can't get via satellite due to non-dup regs, thus forcing me to buy  
cable if I want the Denver channels, and even then I can't get all  
the programming due to non-dup. So the "improvement" has eliminated  
viewing options for me.

Of course the real reason for the changeover was that the government  
wants to get broadcasters  off of the VHF channels so they can  
auction those frequencies to the highest bidder.