I got a message from Direct TV today mentioning that in the fall they will be releasing some 100 new HD channels. To make sure that my box is compatable, they told me to go to channel 499. This channel will than test your box to see if anything needs to be done to receive the new channels. So, this was weird. I haven't seen anything on the forums about this, unless I just couldn't find it. Any idea what channels will be included???