This is an easy one to miss, and the offer only applies until the end of December.
Goto the system menu on the wii and perform the latest update, then go to the shopping channel and look on the ‘channels’ section. You will find that the “Internet Channel” is now available for free, not requiring and points or anything.
I’ve just update our wii, and now have Youtube streaming some music videos to the telly. There seems to be an issue with bbc at the moment, but there are posts on the net about the iPlayer not working with the new system update (the freebie).
I found this after following some story on Google news about the iPlayer delivering most content through Virgin media and that it will soon be available on Freesat. I then spotted some mention of the wii and found the internet channel news.