The Mii Contest Channel which is basically a Mii beauty pageant and the Everybody's Nintendo Channel as translated from the Japanese name which turns your Wii into a DS download station for demo's and such.
Source: http://wii.ign.com/articles/826/826152p1.html
Awesome about the demo channel ;D
Ooooh man demo channel for ds. This is one of the best channel ideas there could be. :)
I'll be waiting until 2010.