The Nanny - Season 3 - Eps 20: Where's the Pearls?
Mr. Sheffield has Elizabeth Taylor over, and like with all celebrities, Fran can't control herself until she meets her. A very friendly Elizabeth asks Fran to take her black pearls necklace to a courier, but of course Fran has to do it in her own way. She takes a cab, and accidentally bumps her head against the window when the driver misses a red light. She is taken to the hospital and wakes up with amnesia. She thinks she's Mrs. Sheffield, and after her she remembers what happened she finds herself in a lot of trouble when she realizes she lost Elizabeth Taylor's pearls.
About The Nanny

Title: The Nanny
First Air Date: 1993-11-03
Last Air Date: 1999-06-23
Status: Ended
Rating: 8.072/10 (from 1186 votes)
Language: EN
Seasons: 7
Total Episodes: 145
Network: CBS
Genres: Comedy, Family
Production Companies: TriStar Television, Sternin & Fraser Ink, Highschool Sweethearts, Columbia TriStar Television
Synopsis
Fran, fresh out of her job as a bridal consultant in her boyfriend’s shop, first appears on the doorstep of Broadway producer Maxwell Sheffield peddling cosmetics, and quickly stumbled upon the opportunity to become The Nanny for his three children. But soon Fran, with her offbeat nurturing and no-nonsense honesty, touches Maxwell as well as the kids.
Cast

Fran Drescher
Fran Fine

Charles Shaughnessy
Maxwell Sheffield

Daniel Davis
Niles

Lauren Lane
C.C. Babcock

Nicholle Tom
Margaret Sheffield

Benjamin Salisbury
Brighton Sheffield

Madeline Zima
Grace Sheffield