What about on HD channels that are already strecthed? I use my aspect button on my tv to stretch to Sd channels, but the guide and the channels that are already strecthed don't look right. Will this change affect them?They have the new software at the Home Show, I posted a run down on what htey showed me in a new thread, but basically the enter button now lets you change your aspect ratio from normal to stretch to zoom. you can choose what you want and it sticks to all channels until you change it. it works really slick.