Question 'bout my system -- I currently have a Pioneer Elite 710HD (best TV in the world, by the way) and am wondering how exactly to get HD with it. I mean, I know how, just wondering what the best way is. I currently have a run-of-the-mill Direct TV system... So what of the following do I need? -The Pioneer chip/adapter thing you plug in the back (that costs like over 2 grand) -a HD antenna -a HD satellite box, like the DTC100 The one thing I know I need is the elliptical dish... But if I get the Pioneer chip/adapter thing, can I use my old Direct TV receiver and still get HD, or do I need a HD satellite box too? And if I do, then what's the point of the Pioneer thing? Who would ever buy it? Thanks in advance.......and by the way -- another vote for the Pioneer RP91K.......WOW!