随着以计算机网络为中心的电子新技术席卷全球，报纸扩版、有线电视网普及、卫视崛起、多媒体亮相，受众有了更大的选择权，广播业面临的竟争日趋激烈。但由于广播传播速度快、信息量大、便于参与、接收方便等特点，仍占据着“三分天下有其一”的地位。据国家体改社会调查中心 With the new electronic technologies centered around computer networks sweeping the globe, the expansion of newspapers, the popularization of cable television networks, the rise of satellite television and the appearance of multimedia, the audiences have greater choice. The competition in the broadcasting industry is becoming increasingly fierce. However, due to its characteristics of fast broadcasting, large amount of information, easy participation and convenient reception, it still occupies the position of “one-third of the world has one.” According to the National Social Investigation Center