Starting Again Slow...Topic For Reader Discussion

It's been so long since I was blogging regularly that I feel overwhelmed with the idea of trying to fill in the backlog and get to topics I missed when I couldn't post. So I'm not even going to try. Besides, I want to hear from those who still read me.

My question to you: if you use YouTube, what are the must-see channels for you? I only subscribe to a couple dozen myself, but most of these don't update regularly or have a lot of content.

After I see your responses I'll add some of mine as a postscript.

PS: http://www.youtube.com/user/irb (International Rugby)
http://www.youtube.com/user/TopGear (Top Gear)
http://www.youtube.com/user/criterioncollection (Criterion Collection)
http://www.youtube.com/user/SEGABBch (Sega's Border Break game)
http://www.youtube.com/user/cbseyelab (CBS Eye Lab [Prime Time Program Promos])