I just purchased my first HD TV and am trying to see if there is a way to default to the HD channels when entering the number for the SD channel. For example, if I enter 7 for channel 7 (ABC-TV), can it automatically tune to 507 - the HD version of that channel instead of having to press the "C" button on the remote. Being that i have an HD TV and an HD box with and HDMI cable connecting the box and the TV, why can't it tune in the HD channels automatically if entering the SD channel numbers. I realize that it might sound crazy asking this, but it's annoying to have to remember to enter the HD version of the channel.