But, when I've got a 16:9 image
When my TV is receiving a 16:9 signal it won't let me change it.
Hmm.
But the Wii
isn't sending out a true widescreen signal. Like many DVDs, it's an anamorphic picture.
You have to change the TV to fullscreen to get the non-distorted picture after changing the Wii settings to 'wide'.
So are you saying that if the Wii is in 'wide' mode, that the VC games are stretched somehow as well?
It doesn't look like it to me, it looks like a forced 'wide' picture and when I put the TV back into 'aspect', I get the regular looking VC game.
When I go back to the Wii menu, I hit 'fullscreen' again.
I really don't think these VC games are given any sort of 'wide treatment'. It's stretched by default because we have our TVs in full screen mode.
I switch it back to 4:3 for the same reason I have to switch it back to 4:3 for most GC games, and those Wii titles that don't support a 'wide' mode as well. (which is ridiculous, Wii titles should be 480p and anamorphic by default)
Until the Wii can output a 720p picture, we wont' have a true 16:9 image.
(and like your TVs, I can't mess with a picture that is outputting a true 16:9 picture)