I'm Nick, your friendly engineer. I heard there were some bugs with the new channels. Michael and I pulled out some bug spray this morning and got the ones that were right in front of us. Sadly, we haven't quite killed them all yet.
Well, for now, we slipped the commas (or language-relevant separators) into the view counts on the videos. Sorry we forgot that the first time round! Also, IE users should be a touch happier now. We tried to clean up some visual issues there.
As I said, there are still a bunch of bugs to squash, so be patient with us. This whole public beta thing is a bit new for us, and so far I'm happy with how it's turning out. We're going to take your opinions into account as we tinker with this, and it'll turn out better with your help. A few of y'all might have noticed the super seekrit opt-in URL wasn't working for a couple minutes. Well, it's working now! If only you know the seekrit. :-P
Anyway, they're letting us engineers out of our cages to post here on the blog, so expect more from me and Michael (the other engineer) in the future.
Update: the whole "can't revert" thing was unintentional, I promise. SuperLuigi and Muddytrails, I reverted your channels by hand. It looks like a logic error in the code on my part; people who somehow hit the migrate function twice (maybe browser error?) lose the ability to unmigrate. I'll fix the logic for the future, and attempt to find all the other broken accounts.