BBC Radio 1’s Greg James reached the halfway point of his 1,000km bike ride for Comic Relief just outside Doncaster, in South Yorkshire, on Tuesday lunchtime. The Radio 1 stunt is a popular fixture of the annual charity fundraiser – played out all day long with regular updates on the station, and enthusiastic reminders to “text 10, 20 or 30”. On Red Nose Day, which falls on 20 March, Mr James and his tandem – on which assorted celebrities have joined him – can expect to be greeted by cheering crowds in Edinburgh.

There is nothing not to like about this warm-hearted caper. The takings from these feats of endurance by presenters reached a record £2.2m last year – when Jamie Laing ran five ultra marathons in five days. But away from the buzzy spotlight of national radio, and seasonal appeals such as the Guardian’s, which raised........

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