What kind of videos are blocked in certain countries? Are they movie trailers or other types of ads?
I wonder if the videos are blocked because the ads that run with them are regionally targetted, because that's how even global corporations do things - their ad departments are divided up regionally.
Yet one huge advantage of YouTube over TV is the ease by which content can reach a global audience, without having to do all these country-by-country deals that TV shows go through. So this is another example of how old media's drawbacks are just being plopped onto YouTube, without a serious effort to understand how to do it better.