All games that show up as being in HD on the NFL Network schedule are in fact in HD, but interestingly enough are on channel 212 (the SD channel). The first HD game is at 3 am with the 49ers, and the replay of the Jets at 10 AM is the second HD game of the schedule. I'm surprised to find it on the SD channel, but hey, works for me. The more HD, the better!
You can find a schedule here http://www.nfl.com/nflnetwork/preseason_2006 but it doesn't show all the games that are on the program guide.
You can find a schedule here http://www.nfl.com/nflnetwork/preseason_2006 but it doesn't show all the games that are on the program guide.