Granville has bought some cheap devices that promise to jump start people's positive emotions, but will they work? Meanwhile, Mr. Newbold has a serious underwear problem which Mrs Featherstone has taken upon herself to solve with Granville's help, and Leroy's latest girlfriend has made Mrs Hussein jealous and caused a local underworld boss to come looking for him.

• Roy Clarke

• Janine Duvitski
• Lynda Baron
• David Jason