I Love Lucy - Season 4 - Eps 23: Hollywood Anniversary
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.
About I Love Lucy

Title: I Love Lucy
First Air Date: 1951-10-15
Last Air Date: 1957-05-06
Status: Ended
Rating: 7.9/10 (from 226 votes)
Language: EN
Seasons: 7
Total Episodes: 180
Network: CBS
Genres: Comedy, Family
Production Companies: Desilu Productions
Synopsis
Cuban Bandleader Ricky Ricardo would be happy if his wife Lucy would just be a housewife. Instead she tries constantly to perform at the Tropicana where he works, and make life comically frantic in the apartment building they share with landlords Fred and Ethel Mertz, who also happen to be their best friends.
Cast

Lucille Ball
Lucy Ricardo

Desi Arnaz
Ricky Ricardo

Vivian Vance
Ethel Mertz

William Frawley
Fred Mertz