How do you tell or force either the tv or the dvd player to do the upconversion? What I mean is....how do you know if the tv is doing the upconversion or the player? I'm still trying to find images showing differences between 480p, 720p, and 1080i. I know most people are saying they can't tell a difference between 720p and 1080i, but how much better is 1080i over 480p or even 540p?

Axiom M60s, VP150, QS8s, EP500 -- Rotel 1075 & 1068 -- Panasonic BDT500 -- Panasonic 60S60