There was a documentary about him released this year I highly recommend called Won't You Be My Neighbor.
https://en.m.wikipedia.org/wiki/Won%27t_You_Be_My_Neighbor%3...
As far as examples, here's an episode about divorce that I remember helping me deal with my parents' divorce when I was little.
https://m.youtube.com/watch?v=xxbsV1XTFcA
Or here's his speech to Congress fighting for funding for public television (it's more complicated than just funding for public television, but that's the basic idea).
https://m.youtube.com/watch?v=fKy7ljRr0AA
Or one of my favorites, his acceptance speech for his lifetime achievement Emmy Award.