Are You Being Served? (1972)

S1E6 Diamonds Are a Man's Best Friend

Payday arrives at Grace Brothers, but the staff quickly discovers that their salaries hardly stretch far enough. When a customer accidentally misplaces a diamond and announces a £100 reward, everyone’s greed takes over—except for Mr. Grainger. Soon, the employees begin plotting against one another in secret. Things take a chaotic turn when Mr. Mash inadvertently ruins a jeweled dress, scattering a flurry of "diamonds" throughout the department and complicating the search even further.