电视频道专业化是电视业发展的一大趋势。在发达国家，频道的专业化已经成为其电视发展的主要特征。频道的专业化是电视竞争的产物，是与有线电视的出现紧密相关的。在美国，１９７７年最高法院推翻了联邦通讯委员会对有线电视的限制，使有线电视业飞速发展。到１９８５年，已 TV channel specialization is a major trend in the development of the television industry. In developed countries, channel specialization has become a major feature of its television development. Channel specialization is the product of competition in the television, is closely related with the advent of cable television. In the United States, in 1977, the Supreme Court overturned the Federal Communications Commission restrictions on cable television, the rapid development of the cable industry. By 1985, already