The fourth generation machine is the abbreviation of the fourth generation live broadcast machine of HuHuHuTong. Its equipment is very different from the third-generation computer in hardware and software. Equipped with intelligent operating system and full HD standard.

"Huhutong" live satellite TV service is a new live satellite TV service organized and implemented by the State Administration of Radio, Film and Television with the approval of the Propaganda Department of the Communist Party of China, in order to implement the spirit of the instructions of the central leadership and solve the problem that people in rural areas can't hear and see radio and TV for a long time as soon as possible.