Just to add. Apparently, there are several different groups that own the rights to different parts of MGM. Among them, one group owns the rights to the name, while another owns the right to the film library. The "name" owners wanted way too much money to extend the contract with Disney, so Disney said fine we will just name it something else. This is why you can still see see MGM movie clips in the movie ride in the studios. I still find myself calling it MGM rather than DHS.