Never the Twain 1981 S01E06

Episode: Father of the Groom. Simon throws a dinner party for the Smallbridges where inevitably Lyn and David try to keep the peace. After the meal the fathers play cards but Oliver is offended when Simon accuses him of cheating and storms out. Lyn and David get married and, overcome by emotion, Oliver and Simon make up - and decide to play cards again.