Digital switchover under way in parts of southern England
7 March 2012 Last updated at 19:33 GMT
BBC Two television viewers in parts of Hampshire, Wiltshire, West Sussex, Dorset and the Isle of Wight have had their analogue signal switched off.
The Rowridge transmitter has switched to digital which means people with analogue TVs have lost the channel.
Those with digital equipment will have to re-tune their boxes.
A message will appear on the screen explaining how to receive the new digital channels.