June 12, 1978

 "I Love Lucy" - "I Love Lucy"
"The Million Dollar Idea"

Lucille Ball and Vivian Vance

I always make a point of mentioning 6/12/1978 because of a line from this classic episode.  Lucy has been overspending and she tells Ethel that she has used up her allowance until June 12th.  When Ethel replies that it is not so bad Lucy comes back with June 12, 1978!