Sleeping Dogs Lie (Only Fools and Horses) Sleeping Dogs Lie (Only Fools and Horses) "Sleeping Dogs Lie" is an episode of the BBC sitcom, "Only Fools and Horses". It was the fifth episode of series 4 and first broadcast on 21 March 1985. In the episode, Del Boy and Rodney babysit Boycie and Marlene's cherished Great Dane, Duke. As Albert watches an old horror movie and Rodney bemoans the lack of jobs in London, Del Boy has found another opportunity to be a millionaire by babysitting Boycie and Marlene's dog, Duke. The Trotter brothers arrive at Boycie's house and meet Duke, a large Great Dane who eats
Only Fools and Horses genuine, though very obscure, saying, "only fools and horses work for a living", which had its origins in 19th-century American vaudeville. "Only Fools and Horses" had also been the title of an episode of "Citizen Smith", and Sullivan liked the expression and thought it was suited to the new sitcom. He also thought longer titles would attract attention. He was first overruled on the grounds that the audience would not understand the title, but he eventually got his way. Filming of the first series began in May 1981, and the first episode, "Big Brother", was transmitted on BBC One at