谁都知道,飞机上有个储存飞行记录的“黑匣子”。法国电视也有个“黑匣子”,是用来监测电视节目收视率的.这是一台小型电子仪器,安装在法国干家万户的电视机上,每天自动向电脑中心“报告”这些家庭收看电视的情况。收看时间、选台变化等,自动记录下来,以作为各电视节目收视率的评估统计.“目标”家庭是经过法国民意测验研究中心严格筛选的,从家庭人口、分布区 Everyone knows that there is a “black box” on the plane that stores flight records. French television also has a “black box,” which is used to monitor television program ratings. It is a small electronic device installed on a do-it-yourself TV in France and automatically “reports” these homes to television every day. Happening. Watch the time, change the channel selection, etc., automatically recorded as a TV program ratings assessment statistics. “Target” family is carefully selected by the French Center for Poll Research, from the family population, distribution area