Not only Direct TV has HDNET.... Dishnetwork as well. They already aired a programm on some desert truck run.. not sure if it was Baja. It was in HD but to be honest with you it was not that spectacular. All you can see is TONS of dust, gravel, sand flying around. Besides, they do not put HD camera on the racing car. A support team travels ahead of the particular truck and filmcrew follows them. On one leg of the trip Toyota truck turn over and they did not show that only radio conversations and support team... thats it. I hope that this filming was done differently.
On issue of resolution, and bit rate. I doubght that DSS companies are playing with resolution.. Bitrate - yes ! Besides, they've changed modulation (Dish) from 8VSB to 4PSK to fit more HD channels per transponder on Sattelite (my old eqipment which let me record HD since 2000, got obsoleted by that). The resolution on fixed pixel display is changed internally by scaler of your monitor - in my case plasma. None of plasmas have native resolution of 1920X1080 so far. The first one is coming from Panasonic this summer.
Hope to enjoy racing in HD




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