So for what I could gather reading the information provided in the channel, MusicTVNet does pretty much what we do, only in an apparently more serious, less goofing off kind of way. Also, they cover more genres in music than us, rock-heads. (For more information in how to be featured there, watch the video).
I'm not really sure if it works or not, because I just found it. What is really interesting about this channel is the three play lists, which are full of YouTube artists performing originals and non-originals. Even LRRG Bububuvard's rendition of Mr. Bungle's "Squeeze me Macaroni" was featured in one of them.
MusicTVNet also has a MYSPACE site.