In which year was the Four Candles sketch from the British comedy show "The Two Ronnies" shown?

Got any o’s, shop keeper gets hose for watering flowers customer says no o’s mon repos o’s shopkeeper gets box of letters off top shelf and sorts out 2 o’s puts box back on top shelf customer says got any p’s shopkeeper looks at him strangely but gets the letters back off top shelf customer says no . Cans of peas and so on and one (Great sketch)