I've been looking around for a HD tv, and I've narrowed it down to 3 choices, Sony high-scan 36' (KV36HS500), Panasonic widescreen 53' rear projection (PT53WX52) or Sony widescreen 51' rear projection (KP51WS500). I'm leaning more towards the Sony rear proj. becuase I want a bigger TV, and it has auto aspect ratio detect, and it has a fairly good stretch mode for 4:3 stuff. I think I wanna go with the 51' Sony, but does anyone think I shouldn't? Are there problems with it that i should know about? Help!