The comedy in "The Nanny" was formulated with many running gags, which contributed heavily to the success of the series. Much of this formula was character-based, with all major characters possessing a specific trait or quirks that provided a source of parody for other characters. The conflicting elements of each character's own comedy were often played off against one another (Fran and Maxwell, Niles and C.C., Maggie and Brighton). Occasionally the characters would break the fourth wall and comment on the situations themselves, or Fran would comment to the audience or look into the camera. Other running gags are the many references to Beatles songs and the musicals "Fiddler on the Roof" and "My Fair Lady". Most of the humor Fran uses is aimed toward a Jewish audience. She makes references to Yiddish words and teaches the Sheffield children to be stereotypical Jews (to never pay retail price, to go after men like doctors, etc.) Much of this humor is featured in scenes including her mother Sylvia.