It was written by Gerald Di Pego based on the book A Mom by Magic by Barbara Dillon and originally premiered on NBC on December 17, 1990.
Her wish for a mother for Christmas is granted by Philomena (Doris Roberts) and Amy Miller (Olivia Newton-John), a department store mannequin, is brought to life to be a mom for Jessica.
To clear up any confusion for Jim, Amy claims herself to be a nanny from Australia hired to help care for Jessica while he's at work and she is given a spare room on top of the garage.
She wants Amy to stay forever with them because her father has grown fond of her and she can't bear to lose another mother.
Amy and the Santa mannequin both help Jessica overcome her stage fright and put on a convincing performance that wow's the crowd.
They head for home and Amy's mannequin friends wishes her the best of luck in her new life, while the store detective is awakened by Philomena using her magic feather duster.