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中国数字广播电视的发展，首先在青岛、佛山、杭州、大连等一批试点城市先行尝试与探索，展现出了可期成功的多种希望和广阔前景，同时也引发了不少令人关注与值得辨析的问题。一、有线数字电视平台究竟可以承载哪些主要功能，应当怎样全面、正确地认识有线数字电视的性质、功能与作用?有线数字电视整体转换，实质上是广播影视业一次以“模转数”的技术革命，带动广播影视节目播出内容与方式重大调整、媒体相关产业开发和拓展承载其他多种经济社会功能的重大变革，涉及广大受众精神文化生活和物质生活内容、品质。又因我国有线电视用户的普遍性、广泛性，故具有一定的全局性、整体性，其意义不可低估。根据全国40多个数字电视试点城市实行整体转换实验的情况，从杭州、青岛、佛山、大连、上海等模式看，我国有线数字电视平台所承载的功能大致可概括为以下“五大平台”。
The development of China’s digital broadcasting and television industry first tried and explored in a number of pilot cities such as Qingdao, Foshan, Hangzhou and Dalian, demonstrating a variety of promising and promising prospects for success, and also aroused much concern It is worth resolving the question. First, cable digital TV platform what can carry what the main function, how should a comprehensive and correct understanding of the nature, function and role of digital cable TV? The overall conversion of digital cable TV, in essence, the radio and television industry to “mode” number The technological revolution has brought about a major readjustment of the contents and methods of radio, film and television programs. The media-related industries have developed and expanded major changes that carry many other economic and social functions and involve the vast majority of the audience’s spiritual and cultural life and the material content and quality of life. Due to the universal and extensive nature of China’s cable television subscribers, it has certain overall and overall significance. Its significance can not be underestimated. According to the implementation of the overall conversion experiment in more than 40 digital TV pilot cities in China, the functions carried by China’s cable digital TV platform can be broadly summarized as the following “five platforms” from the perspectives of Hangzhou, Qingdao, Foshan, Dalian and Shanghai.