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BBC Radio 4 Extra: audience figures

BBC Radio 4 Extra audience data for September 2013 to December 2013

TSA:
This radio station broadcast to a total survey area of 53,205,000 adults (aged 15+).
Reach:
It was listened to by 1,646,000 people (3.0%) each week.
Hours:
Each listener tuned in for 5.9 hours per week - a total of 9,782,000.
Share:
In its area, it had a 1.0% market share.
How are these figures calculated?
Wonder how radio listening figures are worked out? We can help
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Total weekly hours represents the total amount of listening to this radio station. This is affected by the total amount of weekly listeners, or how long each audience member listens for. Hours is normally the most important number for advertising sales.

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Total weekly listeners - total reach - represents the total amount of people who tune in to this radio station. A 'listener' is counted as an adult 15+ who listens for at least five minutes.

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Hours per listener shows how long people who tune in to this radio station stay listening. This is useful to work out whether the audience likes what they hear: or the consistency of the station sound.

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Total market share shows how strong radio station is against other radio stations available. Since 1999, there have been many more radio stations launched, so total share will have decreased for most stations.

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While not directly related to the radio output, the survey area population shows how many people live in the survey area that the above figures are based on. Sudden changes to this figure normally represent a change in the survey area, which is requested by stations themselves, reflecting a change in transmission or programming, and will affect the above figures. Otherwise, a slow growth reflects the growth in UK population.

From the US?
Howdy! We don't do AQH figures in the UK; but our figure for weekly 'reach' is roughly the same as your weekly 'cume'. TSL is similar to our 'hours per listener' figure. And, a TSA in the US is the same as a TSA here. (You say tomato, we say tomato.) Of note: UK figures are based on a full 24 hour day, and a 7 day week - and the above figures measure radio listening on all platforms, including our digital radio and internet platforms.

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Credits: IPSOS/RSL. Full datasets used:Sep 2003: BBC7; Dec 2003: BBC7; Mar 2004: BBC7; Jun 2004: BBC7; Sep 2004: BBC7; Dec 2004: BBC7; Mar 2005: BBC7; Jun 2005: BBC7; Sep 2005: BBC7; Dec 2005: BBC7; Mar 2006: BBC7; Jun 2006: BBC7; Sep 2006: BBC7; Dec 2006: BBC7; Mar 2007: BBC7; Jun 2007: BBC7; Sep 2007: BBC7; Dec 2007: BBC7; Mar 2008: BBC7; Jun 2008: BBC7; Sep 2008: BBC7; Dec 2008: BBC7; Mar 2009: BBC7; Jun 2009: BBC7; Sep 2009: BBC Radio 7; Dec 2009: BBC Radio 7; Mar 2010: BBC Radio 7; Jun 2010: BBC Radio 7; Sep 2010: BBC Radio 7; Dec 2010: BBC Radio 7; Mar 2011: BBC Radio 7; Jun 2011: BBC Radio 4 Extra (was BBC Radio 7); Sep 2011: BBC Radio 4 Extra; Dec 2011: BBC Radio 4 Extra; Mar 2012: BBC Radio 4 Extra; Jun 2012: BBC Radio 4 Extra; Sep 2012: BBC Radio 4 Extra; Dec 2012: BBC Radio 4 Extra; Mar 2013: BBC Radio 4 Extra; Jun 2013: BBC Radio 4 Extra; Sep 2013: BBC Radio 4 Extra; Dec 2013: BBC Radio 4 Extra;