电视时代

• Up to now , the transformation from analogous tv period to digital tv period is determined by government , and according to the estimation this transformation would last for 5 to 10 years . during this interval , both analogous and digital tv broadcasting will have to be transmitted
  又随着数字电视的兴起,目前我国开始从模拟电视时代向数字电视时代转变,这个过渡期估计为5 10年左右,在此期间,模拟电视节目和数字电视节目同时播送,这样就存在模拟和数字电视节目接收兼容性的需求。