About Digital

Digital switchover involves the switch-off of the analogue terrestrial transmissions network that has been in place for more than 65 years - and its replacement with an all-digital terrestrial network.

At the moment digital and analogue signals are broadcast simultaneously. But whilst the analogue signal is maintained, the digital signal can't be broadcast in full and at full power across the UK.

Switchover Map

Switchover will affect all viewers who have any televisions through which they can only receive analogue services BBC1, BBC2, ITV, C4/S4C and (where available) Five services through the TV aerial.

Beginning in late 2007 it will take around four to five years to complete the switchover process and it will take place region by region.

How does Digital work?

With digital TV, sound and pictures from the broadcaster are converted into 'bits' of information and sent through an aerial, satellite, telephone line or cable. This digital signal is then turned back into pictures and sound by a digital box or a digital TV set.

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