Ugh, of course.
The receiver I have can upconvert 480i (over composite or component) to HDMI, or (obviously) any HDMI input. No 480p or 720 over component.
Is there... a way to convert the NES to HDMI? Doesn't really matter the resolution. :\
Thanks for the help, by the way. This issue is just proving to be far more... let's say "dynamic" than I thought. haha