My question is twofold: a. What difference, if any, might I notice with Blu-Ray on a 720p res as opposed to 1080p? I've heard it takes a screen the size of a room's wall to notice any real difference on a 720p display when the native res is 1080i or 1080p. Plus, my TV looks great with the Dish Network high def (also HDMI) which is usually either native 720p or 1080i. Will downconverting from 1080p to 720p result ina noticable loss of quality? b. Does Blu-Ray upconvert standard DVD's any better than the upconverting DVD player I have now? I can only upconvert with mine to 1080i, but I only use the 720p setting anyway (I can set it for 420p, 420i, 720p or 1080i).