1. Introduction - the past

Television used to be a very simple set up. As shown below

An aerial was mounted outside. This was connected to the television with a standard television cable. The viewer had to use buttons on the television itself to tune into the program they wanted to watch and to change the volume.

That type of television is an example of an analogue rather than a digital system

Some time later the tv 'remote control' came along. People no longer had to even get off the couch to control the television. The term 'couch potato' became familiar!

This mini-web will explain how digital and interactive television has become popular in the home.