It's not regional. They are very strict at taking down unofficial Beatles stuff from Yutube. They have an official Vevo page with a few videos and the rest get blocked by Apple or UMG music (not quite sure who owns the rights now).
When he was alive you couldn't find Prince music on Youtube, only a handful of TV appearances. The estate doesn't seem to be enforcing it any more though and now there are plenty.
Of course all the blocking is reactive and I'm not sure how often they do it so you could find stuff one day and then it's removed the next.