There are 13, 000 AM and FM broadcast radio stations in the U.S., and just over 2, 000 of them have been converted to HD.

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Earlier, Magic AM said that it would be "inappropriate" for Mr Travis to broadcast until the investigation was resolved.

BBC: DJ Dave Lee Travis says arrest not linked to children

The new technology will finally let AM stations, long limited by bandwidth one-tenth the size of FM, broadcast in stereo at a quality equal to that of analog FM.

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This means there are times when I have to get up at 4:00 AM because Fox5 TV in New York City wants my analysis on a media story for their morning broadcast.

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Initially called Ceefax AM and Ceefax In Vision, the Pages From Ceefax "programme" continued for 30 years, being broadcast overnight on BBC Two until this week.

BBC: Ceefax service closes down after 38 years on

Mike Hedges AM expressed the need to continue with sufficient funding for the channel in order for quality programmes to be broadcast, such as the children's programme Cyw, and coverage of Welsh Premier League Football.

BBC: TV production gallery

As it happens, how we became so indebted and what to do about it, is what I am examining in a two-part documentary, called The Party's Over, that will be broadcast on BBC Two at 1900 on 4 and 11 December.

BBC: UK's debts 'biggest in the world'