After years of effort, China's video technology has evolved from learning from standard definition and catching up with high-definition to some independent core technologies in ultra high definition that are at the world's advanced level. "Recently, at the" Promoting High Quality Development "series of themed press conferences held by the State Council Information Office, Yang Guorui, Deputy Director of the State Administration of Radio, Film and Television, said in response to questions from reporters. China's television has gone through different stages of development from black and white to color, from analog to digital, from standard definition to high definition, and now it has developed into the ultra high definition stage. The resolution of ultra high definition is more than four times that of high definition, which can provide viewers with clearer details, richer colors, smoother images, and a more immersive experience. At the same time, ultra high definition not only performs well on large-sized screens, but also has significant picture quality improvement on mobile small screens such as smartphones, tablet computers, and car terminals. Therefore, ultra high definition will bring a new audio-visual experience for the people on both large and small screens, "said Yang Guorui. The State Administration of Radio, Film and Television regards accelerating the development of ultra high definition as an important strategic task. Following the work philosophy of "leading the way, breaking through key areas, and upgrading the entire chain", it has taken the lead in piloting in Beijing, Shanghai, and Guangdong, and selected multiple regions to promote provincial-level satellite TV ultra high definition broadcasting. An important task of the pilot work is to break through the bottlenecks of ultra high definition in various aspects such as content production, program broadcasting, network transmission, and terminal presentation, so that ultra high definition programs can truly enter ordinary people's homes, "said Yang Guorui. The State Administration of Radio, Film and Television is promoting the ultra high definition of radio, television, online audio-visual, television large screens, and mobile phone small screens. By the end of 2025, the plan is to launch 13 new ultra high definition channels nationwide, including CCTV and provincial-level satellite TV. By then, there will be over 20 ultra high definition channels in China, and an additional 11 channels will be added by 2026. At the same time, platforms such as iQiyi, Youku, Tencent, Mango TV, Bilibili, and Migu will also add over 50% of their annual ultra high definition programs. At that time, ultra high definition will become the main presentation mode for broadcasting, television, and online audiovisual, allowing people to enjoy a stunning immersive audiovisual experience at home Yang Guorui said. (New Society)