Ed "Stewpot" Stewart was the first Newsbeat presenter back in 1973
When Newsbeat was first broadcast on Radio 1 on 10 September 1973, it was not entirely popular with the station.
The 15-minute programme, presented by Ed "Stewpot" Stewart, went out at 12.30pm in Johnnie Walker's show and at 5.30pm during the Radio 1 Club slot.
Richard Skinner, who worked on Newsbeat from the start, and later became its presenter, says Johnnie Walker was not happy about with the interruption.
Newsbeat 40th anniversary
"He'd get on the air at 12, do half an hour and then have to stop.
"Then we'd come on, bleating about the news and ruining his atmosphere, and then he'd come back on again."
Other people at Radio 1 were also said to dislike it. The show had been forced upon them by BBC management in response to the launch of commercial radio stations who were providing their own news service.
Forty years on, the show is still broadcast for 15 minutes, twice a day, on both Radio 1 and 1Xtra, at the slightly later times of 12.45pm and 5.45pm.
Earlier this year Newsbeat was named best news and current affairs programme at the Sony Radio Awards.
Its first editor was Mike Chaney, who had a background in newspapers as well as broadcasting. He told his reporters to be "faster and slicker than Radio 4".
This photo, taken in 1994, shows how newsroom technology changed over time
Unlike other news programmes at the time, the 15-minute shows were fast-paced and informal, with plenty of music, jingles and quirky stories.
Highlights from one of the first ever shows include Hull MP John Prescott talking about diving safety and an interview with 22-year-old Sue Jackson, who was named buttie maker of the year.
The programme starts with a report on a boy who was banned from his school after dyeing his hair red like David Bowie.
Chris Smith, the show's current presenter said: "I grew up listening to Newsbeat and even when I managed to shoehorn my way into radio I never dreamt I'd end up presenting this amazing programme."
He added: "Since 1973 it's been copied, criticised, loved, hated, but most of all it's been listened to.
"I hope it keeps on rocking for another 40 years, then another 400 after that."
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