Greg James, host of the Radio 1 Breakfast show and self-confessed 'proud radio nerd', uses his access-all-areas pass to the BBC Archives to track down audio gems, using listener requests, overlooked anniversaries and current stories as a springboard into the vast vaults of past programmes.

As Kenneth Branagh returns to our cinema screens as Hercule Poirot in Death on the Nile, Greg gets caught up in his own mystery as he tracks down rare BBC appearances by Poirot's creator, the 'Queen of Crime' Agatha Christie.

The Superbowl sends him stateside as he gets to grips with American Football, fierce coaches and spectacular halftime shows, including an early interview with this year's headliner Kendrick Lamar.

A listener request sends Greg in search of 'The Nightingale of the Wireless' - the now largely-forgotten singing star Mavis Bennett. She was said to have 'the perfect microphone voice' - so much so that one major record company would regularly invite her into the studio just to test their latest technology. She made dozens of appearances in the early days of radio, but avoided TV after an unfortunate experience on her screen debut in 1939.

And in a Rewinder first, a special guest drops by with his own extraordinary archive.

Producer Tim Bano Show less