Although they show Rosa Parks as a hero who first refused to give up her seat on the bus. The fact is Parks got the idea from Claudette Colvin. When she was 15, she refused to move to the back of the bus and give up her seat to a white person, nine months before Rosa Parks did the very same thing.
Jaleel White, in his piece as Nelson Mandela, performs a bit about other worthy black heroes who "never got a holiday". White's segment closely mirrors Red Button's bit from The Dean Martin Celebrity Roasts', where Buttons bemoans other celebrities - none of whom ever "got a dinner".