Digital radio: switchover from FM and AM to DAB signals
Many thought the UK had completed the "digital switchover" when TV analogue signals were switched off in a plan lasting several years.
But there is another change in the offing - and with most people owning more radios than TV sets - this challenge could be a little harder to convert people from FM and AM to DAB.
On Monday, Culture Minister Ed Vaizey is expected to push back the previously-announced 2015 date. Giles Dilnot reports.