数字电视是一个庞大而又复杂的新兴产业,融合了先进的计算机技术、数字处理技术、通信技术、微电子技术等,有着传统的模拟电视系统无可比拟的先进性、科学性,是电视技术不断发展的必然产物。 现阶段推行数字电视(标清),是符合我国广电现状的。通过前几年VCD的热卖、到现在DVD的畅销,都可以看出人们对高品质节目的追求。按现在的市场价,买一台DVD机需要几百元钱,但接下来购片欣赏节目的花销就大了,对于普通家庭来说这是一笔不小的开支。数字电视具备优于传统电视的一切性能,在发挥宣传作用 Digital TV is a huge and complex emerging industry that integrates advanced computer technology, digital processing technology, communication technology and microelectronic technology. It has the advanced and scientific traditional analog TV system, The inevitable product of continuous development. At this stage the implementation of digital television (SD), is in line with the status of China’s radio and television. VCD through a few years ago the hot, until now the DVD’s best-selling, we can see that the pursuit of high-quality programs. According to the current market price, a DVD player to buy a few hundred dollars, but the next purchase of the program to enjoy the cost of the big, for the average family this is not a small expenditure. Digital television has all the performance superior to traditional television, to play a promotional role