 I love how people talk back then. The first Sony Walkman went on sale back in 1979. Also in 1979, Susan B. Anthony got her own coin. It was confused with the quarter, so the Treasury Department eventually stopped producing them. They took as many as possible out of circulation, but they still do exist. 1986, the movie rating PG-13 was introduced to denote film with sex and or violence that previously fell between PG and RR.