There are big changes to BBC network radio's schedules today because of strikes by journalists across the corporation.
The BBC says they're disappointed at the NUJ staff walking out and have apologised to audiences for disruption to programmes.
Radio 4's Today Programme was replaced by a series of recorded repeats – including documentaries about Winston Churchill, Lord Kitchener and wildlife. There was no Thought For The Day, but there have been hourly news bulletins.
Radio 3 has no breakfast show, while in the Nations Radio Scotland's output was replaced by 5 Live – as was Good Morning Ulster (although with news bulletins from Belfast at 7am and 8am.
All 40 BBC local radio stations are on the air, with half operating normal service. Others have core bulletins and a reduced programming service.
Members of the National Union of Journalists began industrial action at midnight over proposals to reform the BBC Pension Scheme. This action will run for 48 hours until 23.59 on Saturday night.
A BBC spokesman said: "We are disappointed that the NUJ have gone ahead with today's industrial action. This is despite the other four unions accepting our revised offer, and feedback from staff that indicates the same. It is the public who lose out and we apologise to our audience for any disruption to services."