Kamakazie! said:yes but normal TV to HD is a much bigger difference.
WIth the Wii you are gonna get 560p (i think its 560? its 5xx anyhow)
576p perhaps? PAL is 768x576 4:3 (PAL DVDs are 720x576). I would have thought that the Wii would only output 640x480 which is the NTSC resolution of Japan and the US etc. just as the old Xbox and PS2 do.