Originally Posted by gresch

hold on a sec, if it's not an HD tv, how do you have it hooked up? via composite (R,W,Y )? if so, and the box is setup correctly, it should send an SD signal to the tv over composite. Unless you've jammed a set of component cables into the composite inputs on the tv.

An HD box will output SD to an SD tv over composite if set up correctly. Make sure the box is setup correctly.