What is a Media Channel?

Channelguide 360 is a site which sends WMV movies/podcasts to your xbox 360. Which begs the question what qualifies as a media channel? Will media be so open sourced one day that anyone can tap in and eloquate? Someday large media companies may fall from their throne as everyone creates, trades and takes their own media. This may ultimately be nothing more than a podcast, but i think its just reinforcing the fact that media is fragmenting and becoming more customized. The internet has become not only the great enabler but the great fragmenter. By connecting people it also is breaking up the current media channels we know/use/love/hate and creating new ones. That and the 360 is getting some love out there..
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