The Frequency of Laughter is a six-part history of radio comedy, covering 1975-2005, presented by journalist and radio fan Grace Dent. In each episode she brings together two figures who were making significant radio comedy at the same time, and asks them about their experiences. This is a conversational history that focuses on the people who were there and the atmosphere within the BBC and the wider comedy world that allowed them to make great radio - or not.

This final edition features Justin Edwards and Jan Ravens looking at radio comedy in the early 2000s. Justin is now known for his work on In And Out Of The Kitchen and Radio 4 Extra's Newsjack, but got his first series in 2003 as part of the sketch team The Consultants. Jan's association with radio comedy dates back to the early 1980s when she became the first-ever female radio comedy producer, but became beloved of the Radio 4 audience for her work on Dead Ringers, which started in 2000. Grace asks them about the atmosphere within the Radio Comedy department and within the BBC; they discuss the difference between topical comedy and satire, and whether the Radio 4 audience necessarily wants either; and they discuss the contribution a good sound engineer can make to a programme.

The Frequency of Laughter is presented by Grace Dent, a journalist for The Independent, and is a BBC Radio Comedy production.

Presenter ... Grace DentGuest ... Justin EdwardsGuest ... Jan RavensInterviewee ... Jerry Peal

Producers ... Ed Morrish & Alexandra Smith.