What does it mean to enter an authoritative verification code for digital TV?

The user has no authority and needs SMS verification.

The main characteristics of digital TV:

Digital TV is an end-to-end system, which digitally processes the signals from program acquisition, program production and program transmission to the client. Broadcast and interactive digital TV based on DVB technology standard. Advanced user management technology can make the quality and quantity of program content perfect, and bring more program choices and better program quality effects to users. Digital TV system can transmit various services, such as high definition TV (abbreviated as "HDTV" or "HD"), standard definition TV (abbreviated as "SDTV" or "standard definition") and so on. Compared with analog TV, digital TV has the characteristics of high image quality, large program capacity (more than 10 times the program capacity of analog TV transmission channel) and good sound effect.

Development of digital TV in China: In recent years, Chinese mainland has vigorously promoted the conversion of analog TV signals to digital TV signals. It is planned to close the national analog signal before 20 15. But there are many problems in the process of implementation. Forced and high fees in the promotion process are accused of trying to make money. Cable TV system is a vassal country operated independently by local governments. Digitalization started earlier, and European standard DVB-C was mostly adopted. From 2003 to 2004, Beijing, Shanghai, Qingdao, Jiangsu, Hangzhou, Foshan, Shenzhen, Guangzhou and Dalian have launched cable digital TV broadcasting. In 2005, Fuzhou, Xiamen and other places opened digital TV broadcasting. In 2007, Chongqing set off a wave of digital TV conversion. Wireless TV is the subject of standard debate. Tsinghua University's DMB-T standard and Shanghai Jiaotong University's ADTB-T standard are the hottest competitors. In August, 2006, the National Standardization Administration Committee announced the digital broadcasting standard of Chinese mainland, namely DMB-T/H(GB 20600-2006). China digital TV terrestrial standard, abbreviated as DTMB in English, became one of the four terrestrial digital TV broadcasting standards in the world on 20 12 and 1, and was widely popularized in Chinese mainland and extended to Laos and other countries.

China digital TV source coding standard is AVS, which has become a mandatory national standard and will be fully implemented after 20 12 and 10.