High definition TV, simply put, is a higher resolution in your TV picture than you are used to. In recent years, standard definition TV was the norm. Higher resolution means more pixels on your screen, giving more detail and a sharper picture. With HD TV you may also notice a more colourful picture which is clearer and generally more life-like.
In order to watch HD TV you will need an HD-ready TV set and access to high definition broadcasts, which are as yet limited. You can receive them via Freesat or from other paid subscription services such as Sky HD and Virgin Media. Freesat is a free-to-air service, but you will need a suitable size satellite dish to receive signals and the service is not yet available across the whole of the UK. HD TV is at present available across a limited number of broadcast channels, but considering its popularity, the number is sure to increase rapidly.
Most TV sets now on sale are able to receive HD broadcasts and will have a label to indicate this. They have a minimum screen resolution of 720 horizontal lines and the necessary digital sockets to receive and display an HD picture. The Scart sockets are now replaced by HDMI sockets to cope with high definition. HD broadcasts are digital, the information being compressed to avoid too much bandwidth use, and TV in general is going digital, so this is not a problem. (more...)