数字电视付费频道免费预览功能的实现

摘要

This article describes the implementation of several pay channels for free preview of the program, and compared the advantages and disadvantages of various options for the development of radio and television operators to provide reference service pay channels.%介绍了几种实现付费频道免费预览功能的方案,并对比分析了各种方案的优势和不足,为广电运营商发展付费频道业务提供借鉴。