What are the cable TV signal interfaces?

There are 10 cable TV interfaces, including R signal interface, composite video signal interface, audio signal interface, YC signal interface, Y, P, PK signal interface, R, G, B signal interface, CKsu(VGA) signal interface and digital video signal interface.

Extended answer:

Cable television (CATV), also known as cable television, was developed from wireless television and first appeared in Pennsylvania, USA from 65438 to 0950. Cable TV still retains the broadcasting system and signal modulation mode of wireless TV, and does not change the basic performance of TV system. Cable TV transmits recorded programs to users through cables (cables or optical cables), and then replays them with TV sets, which will not radiate electromagnetic waves into the air, so it is also called closed-circuit TV. Cable TV is a kind of pay TV, which is paid by viewers rather than sponsors.

CATV (Cable TV), originally referred to as "public antenna TV", now refers to all wired or optical fiber copper cable hybrid systems used to transmit video signals to communities and households. The earliest cable TV service appeared in 1948, when the cable TV network was used to realize the simple broadcast of radio and television programs. In the early 1980s, the cable TV network achieved global large-scale coverage. Cable TV network enterprises are operating enterprises that provide cable TV services to users.

Television systems first appeared in the United States in the 1940s. The original system was used to enjoy the antenna TV in the apartment building. It is impossible for residents of apartment buildings to install antennas on the roof, so antenna TV system came into being. * * * Enjoy antenna TV is very simple, it consists of a * * * enjoy antenna TV amplifier installed near the main antenna and cables laid to all households.