Wrong!!
Once the programmers or Dish converts a SD (MPEG2) program to HD
(MPEG4), it is true HD (MPEG4) by any definition except that it was not
created in HD. Note: As long as it has the 16 by 9 aspect ratio it is
called HD even if it is shown in letterbox or boxed type format.
Just like when TBS purchased or had some of its B&W movies colorized.
These newer version were reclassified by MPAA as color version of that
movie.
Also, I think the American people are smart enough to understand what I
say without explain every little deal! Because if they do not understand
they have the right to ask for more detail themselves.
But there are others, who disagree! They are foolish people that think you
have to explain every little detail. They want to control the information
that others will have, so the people who is asking for information will
make the wrong decision because of too much overwhelming information.
Its also seams like there are a few people like "Char Johnson" wanting
to stop people from having asking question.
Plus, most poster and reader do do want to spend their time writhing or
reading a Wiki size block of information about such topics.
Example of a quick answer is cabling: High to low quality. All HD
receivers can have all connection for primary tuner. For those with
a second SD accessible tuner (exception, 922), using HDMI or DVI on
second tuner requires upgrade converters.
HD signal only (primary tuner)
HDMI -- Single cable with both digital Video and Audio built in.
HD video signal: (primary tuner) Some converters are high price
DVI -- Used mostly for TV with DVI connector.
Requires HDMI to DVI converter on Dish receivers. Single
cable with digital Video only, Audio separate cable can
be digital (optical or coax) or Analog RCA cable.
Analog for some HD receivers primary tuner plus the old Dish 6000
Component -- Three video analog cable with either digital or
analog audio cable.
SD signal only: All Dish receivers for each accessible tuner
S-Video -- Two cables, one for S-Video and either digital or analog
audio cable.
Composite Video -- One video cable with either digital or analog
audio cable.
R-6 -- Antenna Cabling, using SD channel 3 or 4 on TV.
This is a lot easier to explain and understand than some other responses.
And if I added the info for the 922 second tuner it would get a little
complex and unless your looking into 922 that info is not really needed.
So, it better for another to ask for that info in a separate post.