"Madison Avenue is afraid of the dark," Nat King Cole 1957

Los Angeles (CNN) -- Nat King Cole's groundbreaking television show, launched in 1957, folded after only a year because no national advertiser would risk a Southern boycott by sponsoring the first program hosted by an African-American.
"Madison Avenue is afraid of the dark," Cole said after quitting the show, making reference to the street in New York on which many advertising firms were located.