By Ryan Fahey For Mailonline
Published: 02:00 GMT, 15 February 2020 | Updated: 08:28 GMT, 15 February 2020
It is regarded as the BBC's intellectual powerhouse, famed for its serious and high-brow content.
But it appears bosses at Radio 4 are looking to inject more fun and positivity into proceedings, after telling producers it 'does not all have to be hard work'.
Programme-makers were told that the station needs more stories 'which bring joy and optimism to our audience'.
In a briefing document for producers, bosses also warned of depending on predictable ideas and voices, saying the service now needed to give 'a platform to exciting new thinkers'.
The station should avoid relying on 'a familiar 'ideas establishment' ' and aim to 'widen the range of people whose thinking we take seriously', the document said.
Radio 4's output is famous for cerebral shows such as historical discussion In Our Time, presented by Melvyn Bragg, and high-brow talk show Start The Week, presented by Andrew Marr. Other well-known shows include the Today programme, Woman's Hour and Desert Island Discs.
A 2018 photo shows Melvyn Bragg at the Southbank Sky Arts Awards in London. Radio 4's output is famous for cerebral shows such as historical discussion In Our Time, presented by Melvyn Bragg, and high-brow talk show Start The Week, presented by Andrew Marr
Commissioning editor for Radio 4 factual Richard Knight said the station wanted factual programmes that 'have the