科学技术的进步使全球广播电视业正在经历一场根本性的变革,在这一变革中传统的由广告获得主要收益的广电运营模式会逐渐淡出历史舞台。当前广电网络的技术变革突出表现为两个方面,一个是数字化,另一个是双向化。那么,这两个利器给城市广电带来的是机遇还是挑战?实力相对较弱的地方城市广电是扬帆远航还是慢慢被淹没?这是一个值得城市广电 Advances in science and technology have led the global broadcast industry to undergoing a radical change in which the traditional mode of operation of radio and television, which derives the major benefit from advertising, will gradually fade from the stage of history. At present, the technological changes of broadcasting and television networks are manifested in two aspects: one is digitalization and the other is bidirectional. So, these two tools to the city is brought opportunities for radio or challenge? Strength is relatively weak where city radio is slow or slowly submerged? This is worth a city radio and television