Hello,
Regarding the comments about aspect ratio being messed up with down-scalers, we can actually correct for that in the VIC-IV, since everything actually passes through the horizontal hardware scaler, anyway. Thus if you picture is too fat or too skinny, or just in the wrong horizontal position, you can fix it. You can see me do this when the MEGA65 gets its first outing on a 200 inch screen:
https://www.youtube.com/watch?v=2H2mh8wLXco
Naturally, we will one day make kickstart allow you to define persistent settings for this sort of thing.
Paul.