The site edublog.tv has a niffy little feature. It allows you to snag youtube videos and they host an imprint of them on their site.
I tried, really tried to use teacher tube. I hosted all my k-5 student projects there-but it loads slower than syrup in winter. So I ended up putting the junior high stuff on You tube- adding ther link to my wiki and a disclkaimer about adult content in other areas of you tube-and that way parent could open you tube at home,
So on the weekend snag the you tube vid's you want to use by hosting on edublog,tv- then you can view them off edublog.tv and the kids can't get into youtube
I see this as a wiin win . You can use the vid's you want, the IT guys will be happy and as more of us snag the educational content we need, the better the site gets and more educational vid's will be available there. This past week I snagged all the school house rock vid's and they are on edublogs.
Since the site is for education there is oversite and they remove inappropriate video's similar to how teacher tube does.
here is their url http://edublogs.tv/index.php