You could feel America starting to ease up a little bit on racism, against blacks in certain pockets, and then suddenly The Cosby Show bubbled up and it was the right time for it.
We punch mirrors and we explore our darker selves. No, it's just an amalgam of all newscasters that we grew up with. Sort of like before there was cable, when these people were like gods.
Hollywood is for-profit, is what Hollywood is. All the studios are owned by big, megacorporations that are the furthest thing from liberal you can possibly imagine.