nice thread
about Wind Waker example... Nintendo could easily force a 16:9 mode in pretty much every game with a transparent GUI in Wii.
let's hope they add it, because it's dead easy.
Also; comparsion pics
Example 1
Composite:
S-video:
Example 2
Composite:
S-video:
Example 3
Composite -> S-video

I don't have comparations with Composite/S-video and RGB (nor progressive scan) though.