Today we learned how to obtain licensing via a contract with the company that owns the rights to the video you wish to stream. We also learned what public domains were and how to find them in archives. Finally I learned the basics to photoshopping.
I wonder why public domains can't be used for profit or self-gain. Also why do companies hold on to copyright of old videos from as far back as the 80s?

I want to know how to use Adobe Photoshop to its fullest extent.