I Love Lucy S04 E23 Hollywood Anniversary

"Vitameatavegamin - Spoon Your Way To Health!"

Frantic over having forgotten the date of their wedding anniversary, Ricky tells Lucy that he has a big party planned in a famous nightclub. He doesn't tell her when it is, desperately wiring their marriage license bureau for the correct date. This episode is based on an actual surprise anniversary party that Desi Arnaz threw for Lucy.