When Ralph catches Norton raiding the icebox, the latter says, "Dun-de-dun-dun", in imitation of the show's theme, and then says that when they do his life on "Dragnet", they will leave out his name to protect the innocent
In response to Norton's 'Dragnet' comment after being caught raiding the Kramden's icebox, Ralph orders him to put the turkey leg back into the icebox or they'll being doing his life on 'Medic'.