What is the TV system and resolution in China? What is the frame rate?

PAL system is used in most parts of China, and the official imported DV products bought in domestic and domestic markets are all PAL system. Frame rate is 29.97fps, scanning line is 525, interlaced scanning, picture ratio is 4:3, and resolution is 720x480.

1, the first color TV independently developed by China.

1958, 17 In March, the state-owned Tianjin Wireless Power Plant (later changed to Tianjin Communication Broadcasting Company) produced the first black-and-white TV set with 35 cm electron tubes in China, which was named "Beijing" (Jingpai 820).

2. The origin of television

1925 10 2 In an experiment in London, John Logie Baird, a scot, "scanned" the image of a puppet. As a symbol of the birth of television, he was called "the father of television".