Samsung launched "YouTube on TV" today, an app that brings 3D videos from the world's most popular video-sharing site to Samsung smart TVs. The service was announced at IFA in September, and Samsung promised it would be available by the end of 2011, so the release is just in time. 3D video content is still fairly difficult to come by, and the app is an attempt to fill that void with more than 8,000 "high-quality" 3D YouTube videos. Although Samsung's app should work anywhere in the world, YouTube currently only offers 3D video in North America, UK and Japan — the service should roll out to other countries in the future. We can't find the "YouTube on TV" app on Samsung's app store yet, but it should be available soon.