d21lewis on 18 October 2014
I have a ton of Wii games and I've tried them on my Wii U and aside from going from components cables to HDMI, there was virtually no improvement on my TV. I took the Wii out and put the Wii U in its place on launch day.
I'm pretty sure Nintendo themselves have stated this. With the backwards compatibility on Xbox 360 and PS3 (before my 80gb phat broke) there was a definite upscaling effect. With the Wii U, I haven't seen this at all.
