Err ... all content is SD on a Wii ... even if you get the funky HD cable set which is just SD over component video.
Seriously? Why do they even bother?
The games are good for a laugh, and for newbies to the wii, it's a bag of laughs for the first 1/2 hour while you set up a character for someone ...
And then you get to the games.
The party games are pretty funny for crowds, but the games have no real longevity as a single player.