Oooooooh yeaaaa
http://www.youtube.com/user/ZooKeeperLoops
Alright, to be honest I don't know about a Youtube channel which really was underapreciated, most of them have subscribers in the ten thousands or more.
Only one I can kind of contribute to this thread is "worldii", a dude who travels the world, tells you about his trip and posts great video footage. Go check it out.
http://www.youtube.com/watch?v=CsndW6GYJrc&feature=channel_video_title
I'm off to watch the blind guy play Zelda
mfG diebane