Tyne Daly, guest-stars in this episode, famously played Detective Mary Beth Lacey on Cagney & Lacey (1981). Previously, Sam had once introduced himself and Fiona to the accomplices as Detectives Cagney and Lacey.
Sam and Fiona are helping out a friend fleece a con man and his accomplices. At one point in the episode Sam introduces himself and Fiona to the accomplices as Detectives Cagney and Lacey.