December 18

What happened today on December 18 back in...

1971

 * "The Diet Caper," the fifteenth episode of Help!... It's the Hair Bear Bunch!, premiered on CBS.
 * "They Went That Away," the fifteenth episode of The Pebbles and Bamm-Bamm Show, premiered on CBS.

1976

 * "Hyde and Seek," the sixteenth and final episode of The Mumbly Cartoon Show, premiered on ABC.
 * "There's No Heel Like El Eel," the sixteenth and final episode of Jabberjaw, premiered on ABC.
 * "The Spirits of '76," the sixteenth episode of The Scooby-Doo Show, premiered on ABC.
 * "The Prophet Profits," the sixteenth episode of Dynomutt, Dog Wonder, premiered on ABC.