I've been into Home Cinema for a few years now and have built up a decent rig. I'm now looking into moving up from my Sony 41DS1 to a front projection system. I'm also modifying my PC for Home Cinema purposes. I keep seeing references to 480i, 720p, 1080i, etc. I guess that these relate to picture resolution but haven't found a newbie guide to this. Can anyone please explain what the means ??? The review of the PLV-30 in this months mag also mentions this.......Please excuse my ignorance on the matter.