What are the characteristics of digital TV compared with analog TV?

Ultra-high definition image quality: Digital TV signals are almost undisturbed during transmission, so the TV images seen at the receiving end are close to the studio level and can reach the quality of DVD.

2. Rich program content transmission: the analog signal is changed into digital signal for transmission, and the original analog channel can transmit more than 6 digital channels, thus increasing the number of channels that can be transmitted by cable network to more than 300 sets at most. At present, Xiaoshan Cable Digital TV has opened more than 60 basic channels in Central China, Zhejiang, Hangzhou and other provinces and cities. At the same time, according to the individual needs of different users, more than ten professional subscription channels have been opened.

3. Integrated family information platform: While enjoying radio and television services, users can directly inquire about stocks, municipal announcements, weather forecasts, transportation, real estate, tourism, catering, shopping and other information. Through the remote control, the TV set becomes a veritable information appliance.

4. Interactive VOD (enhanced interactive set-top box service function): The interactive VOD function of digital TV has changed the traditional way of watching TV, from "waiting for the program" to "waiting for me now". It also has the functions of stopping, rewinding, replaying and fast forwarding. Users can directly order movies, TV series, columns, pop music, exciting events and other programs.