一.引言随着科学技术的进步,世界经济的飞速发展,人类社会正在步入一个信息化、多元化的高度文明的新时代,作为政治宣传、新闻传播、文化娱乐的重要媒体之一的广播电视越来越成为人民日常生活不可或缺的一部分。改革开放以来,我国的广播电视产业,更是获得了空前的发展,全国电视台数量猛增,电视节目增多,播出时间延长,人们对电视节目质量的要求也越来越高。电视台技术的核心——节目播出,受到了前所未有的挑战。早期的手工 I. INTRODUCTION With the progress of science and technology and the rapid development of the world economy, human society is entering a new age of highly informatized and diverse civilizations. As one of the important media of political propaganda, news dissemination and cultural entertainment, Television is increasingly becoming an integral part of people’s daily life. Since the reform and opening up, China’s radio and television industry has enjoyed unprecedented growth. The number of national television stations soared, the number of television programs increased and broadcasting time was extended. People’s requirements for the quality of television programs were also getting higher and higher. The core of television technology - broadcast programs, has been hitherto unknown challenges. Early handwork