re: Anybody got a high-def TV?
It seems to me you also have to consider the size of the "pixels". For a 17" monitor with 1920 pixel horizontal resolution, the size of the features you're looking at will be smaller than say for a 55" HDTV with 1920 pixel horizontal resolution.
The HDTV might therefore make significant small features easier to recognize. You could also of course see much more of the full image at once. Conceivably this could also be helpful in recognizing large scale features.
Bob Clark