Did You Know?

Today is Citizenship Day.
It was on this day in 1966 that Mission Impossible debuted on CBS, airing for seven seasons.
Also on this day in 1972, M*A*S*H debuted on CBS, and lasted for 11 seasons.
The Doors made their one and only appearance on the Ed Sullivan Show on this day in 1967.
The US Constitution was signed on this day in 1787.