频道专业化是电视这一大众传播媒体从“广”播走向“窄”播,从传者中心走向受者中心的必然趋势,是对大量同质化的综合频道无序竞争、资源浪费的有力反拨,目的是实现各种传播资源的优化配置,获取最大的传播效益,进而使媒介自身获取最大的 Channel specialization is the inevitable trend that the mass media such as television broadcast from “Guang ” to “Narrowly” broadcast from the center of the transmission to the center of the receiver. It is a disorderly competition for a large number of homogenous integrated channels, The goal is to achieve the optimal allocation of all kinds of communication resources and obtain the maximum transmission efficiency so that the media itself can obtain the maximum