An analog TV signal is made up of a video signal broadcast on AM radio waves, and an audio signal broadcast on FM waves. Analog technology is currently being replaced by digital technology throughout the world.
Analog broadcasts have an aspect ratio of 4:3
Digital
There are a number of different ways to receive digital television. One of the oldest means of receiving DTV (and TV in general) is using an antenna. There is also digital cable and digital satellite.
Pay per View
Pay per view is a way that people can pay to watch television in their homes. Common events include movies, sporting events, and pornographic movies.
High Definition
High-definition television is a television broadcasting system which uses a higher resolution than a normal television. Higher quality. 16:9 aspect ratio. Most HDTV use digital signals.
Satellite
Satellite television is a way of sending television signals. It is a satellite in space. The satellite then transmits that signal back to earth. People with a satellite dish can receive the signals. Sky is an example of this.Cable
Cable television is a way of letting people watch television without having to get signals from an antenna. The television signals are brought to the television through a cable, usually underground.
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