Compared with the single past time and space of movies, the time and space that can be revealed by TV live broadcast have both the present tense and the past tense, while the network live broadcast has the function of compressing time and space besides TV. Such as synchronous text live broadcast, picture live broadcast, game live broadcast, mobile phone live broadcast and score live broadcast, etc. With the development of society, efficiency makes everyone know the benefits of live broadcast, reduces costs and accelerates the spread of information.