Where is the term "Battle of the Sexes" used?

In tennis, "Battle of the Sexes" is a term that has been used to describe various exhibition matches played between a man and a woman. Most famously, the term is used for a nationally televised match in 1973, held at the Houston Astrodome, between 55-year-old Bobby Riggs and 29-year-old Billie Jean King, which King won in three sets. The match attracted massive attention and was viewed by an estimated 90 million people around the world. King's win is considered a milestone in public acceptance of women's tennis.