Really, despite the fact that there are more and more videos on the Internet, working with them is not simplified. Good content, in the same way as before, you need to either shoot or search. In the later case, sometimes, you need to buy it. In Russia, the issue of rights for public showing is not so acute, but gradually the situation is changing. No kidding, public showing of the video downloaded from YouTube is not a good idea. Even if you really liked it. To resolve the issue on the right for public showing, you need to negotiate with its author and sign a license agreement. The cost of such rights is determined by the author himself. Any way, you can always do something at your own peril.