As a black man with a mixed daughter, this episode was great to me. Especially the bit about not having your hair touched by random people.
Our daughter was 2 and we were on an airplane, and this man just came up to her and just touched her hair. Didn't ask, just did it. I was in too much shock to say anything at the time but I vowed not to let anything like that happen again. People just look at her as an attraction sometimes and like they said on the show, we're not animals at a zoo (you're doing the zoo wrong!).
As previous posters mentioned, the Chris Rock documentary Good Hair has great info on black hair and would be a good view for further insight.