December 21

What happened today on December 21 back in...

1962

 * "Flashgun Freddie," the seventy-fifth episode of The Flintstones, premiered on ABC.
 * Carmen Get It!, the hundred and twenty-seventh theatrical short of Tom and Jerry, premiered in theaters.

1968

 * "Ballpoint, Penn, or Bust!" and "Fast Track to Hackensack," the fifteenth episodes of of Wacky Races, premiered on CBS.
 * "The Spy," the sixteenth episode of Arabian Knights, premiered on NBC.
 * "Exploring an Ant Colony", the fourth and final episode of Micro Ventures, premiered on NBC.

1974

 * "Comedy Cowboys," the sixteenth and final episode of Hong Kong Phooey, premiered on ABC.