🚀 go-pugleaf

Huey <huey01@gmail.com> wrote in
<MPG.222fa7602f34e808989838@news.west.earthlink.net>:

| directv and dish network both broadcast their HD up to 1080i.  comcast is
| only 720i or 720p IIRC.

No, that's not true.  Comcast has some 1080i content.  Also, AFAIK nothing is
broadcast or distributed in 720i anywhere in North America.

When I connect Comcast coax in Chicago Area 2 straight to the QAM tuner of my
HD set without going through the STB, the HD feeds of WBBM, WMAQ, and WGN
come in at 1080i, same as their OTA HD feeds.  (Comcast doesn't carry WYCC
HD, which comes at 1080i over the air.)  Those of WLS, WTTW, WCIU, WFLD, and
WPWR come at 720p, again the same as their OTA HD feeds.

I can't say what the specs are for the scrambled HD channels on Comcast.  The
Motorola DVR that I rent from them sends the signal to the TV according to
the output selection of the customer: from the box to the television, either
all HD is in 720p or all HD is in 1080i.  I do not know a way to tell whether
a given scrambled HD channel is 720p or 1080i upstream of the DVR.  It would
be nice to have a setting to keep the resolution of the signal and pass 720p
as 720p and 1080i and 1080i.