TV broadcast classification by signal source can be divided into antenna signal playback, digital signal playback, and Internet TV. The antenna broadcast uses the antenna's receiving signal to the TV tuner to receive, filter, amplify, decode and other series of processing through the TV. After passing the electron gun high pressure, the image is sent to the kinescope and played. The broadcast is not very stable because the signals received by the antenna are different depending on the level and direction. Basic conditions do not have antennas. Some rural areas still do not have digital television. Followed by digital television, now we are most familiar with China Digital Cable TV, because digital TV programs have a rich and stable broadcast, and the program has high definition and are therefore well-received by the people. Now it is very common in cities and rural areas. Followed by the Internet TV, a high-quality high-definition LCD TV to move home as long as the WIFI company, just like the computer. The only difference is the lack of a mouse and keyboard. But don't worry about this. Nowadays, smart TVs can basically connect wireless mice and wireless keyboards. And Bluetooth speakers, cameras and other accessories. So smart TV is so smart. See the figure below for more details.
What is Internet TV
HDTV
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