一、受众调查工作日益受到重视受众调查在２０世纪２０年代后期首先出现在美国。８０年代末期 ,节目的多套化 ,数字压缩技术的实用化和交互式多媒体的日益发展 ,给广大受众带来了更多的节目选择余地。为了吸引更多的受众 ,招揽大量的广告 ,扩大传播效果和各自的效益 ,西方发达 First, the audience increasingly paid attention to the survey The survey of the audience in the late 1920s first appeared in the United States. In the late 1980s, the program’s multi-set, digital compression technology and the growing use of interactive multimedia, to the general audience to bring more choice of program. In order to attract more audiences, attract a large number of advertisements, and expand the dissemination of results and their own benefits, the western developed