"Commercials can also pass along information about social changes," explains David Sun. For example, when the government had allowed the visiting of relatives in the mainland, the curled tongue sound of Peking mandarin was all the rage. Suddenly, television commercials were full of accents like the mainland child star Ku Hsiao-tu's.
「廣告也會傳遞若干社會趨勢變遷的訊息」，孫大偉解釋，例如大陸探親剛開放時，講究咬字和捲舌音的北平話就蔚為風尚，一時之間，電視廣告出現不少「古小兔」式的腔調。