"Are You Being Served?" is a British sitcom following the antics of staff at Grace Brothers, an old-fashioned department store. Originating as a Comedy Playhouse pilot in 1972, Jeremy Lloyd's idea for the show was based upon his experience in the 1950s working in department store Simpson of Piccadilly. The main characters are Captain Peacock (Frank Thornton), a pompous floor walker; Mrs Slocombe (Mollie Sugden), head of ladies fashion; her assistant Miss Brahms (Wendy Richard); fussing manager Mr Rumbold (Nicholas Smith); Mr Lucas (Trevor Bannister), a junior menswear assistant; and Mr Humphries (John Inman), a camp, senior assistant in the menswear department. Mr Lucas was replaced in the final three series by Mr Spooner (Mike Berry). Mrs Slocombe changes her hair colour every week, while Mr Humprhries was known for his catchphrase `I'm Free". Other notable characters in the series include Young Mr Grace (Harold Bennett), Mr Grainger (Arthur Brough), Old Mr Grace (Kenneth Waller), and Mr Beverley/Harry Harman (Arthur English). After 69 episodes, the final show was broadcast on BBC One in April 1985. A feature film version was made in 1977 and some of the cast reunited in 1992 for a spin-off show written by Lloyd and Croft called "Grace and Favour".