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Encyclopedia > Appreciation Index

An Appreciation Index (AI) is a score between 0 and 100 which is used as an indicator of the public's approval for a particular television programme or broadcast service in the United Kingdom.[1] Until 2002, the AI of a programme was calculated by BARB, the organisation which also compiles television ratings for the major broadcasters and advertisers in the UK. As of January 2008, the BBC carries out its own AI research.[2] BARB, the Broadcasters Audience Research Board, is the organisation that compiles television ratings in the UK. It was created to replace a previous system, where the BBC and ITV companies compiled their own ratings. ... It has been suggested that ratings point be merged into this article or section. ... This article is an overview article about the Crown chartered British Broadcasting Corporation formed in 1927. ...


Whereas regular ratings information can be calculated overnight, the AI of a programme can take up to two weeks to calculate, and is therefore not given the same prominence by the television industry in the UK.[3] However, the AI can be useful in assessing the public's attitudes to programmes made for small or specialist audiences, especially in cases where ratings information on its own may be unreliable.[1] If a television programme has performed passably in the ratings, yet achieves a high AI, it can help to determine whether the programme should be recommissioned.[2]


The average AI for a drama programme on UK television channels BBC One and ITV1 is 77. A score of 85 or more is considered excellent, while a score of 60 or below is considered poor.[4] Sometimes a programme will not garner an AI, as the response for that programme may have been too small. Nor is the AI a conclusive measure; while it is valuable for comparisons within a particular programme category, comparisons between the AIs of different programme types (e.g. dramas with quiz shows) carry no weight.[5] In mathematics and statistics, the arithmetic mean (or simply the mean) of a list of numbers is the sum of all the members of the list divided by the number of items in the list. ... For the BBC radio station, see BBC Radio 1. ... ITV1 is the name, in England, Wales and the Scottish borders, for a terrestrial, free-to-air television channel, broadcast in the United Kingdom by the ITV network. ...

Contents

History

In 1936, the BBC began conducting surveys of its radio and television audiences. The intention was not to count the number of listeners or viewers, but to gauge opinion on the programmes themselves. The BBC used volunteers, who kept diaries of their listening and viewing habits, submitting them to the corporation periodically. From these, the first Appreciation Indexes were calculated and privately made known to the programme-makers.[6] This article is an overview article about the Crown chartered British Broadcasting Corporation formed in 1927. ...


A flaw in the method became apparent when programmes with low audience numbers were left with a small, yet loyal, core of fans. These would give the programme an inflated AI. When commercial television launched in Britain in 1955, advertisers were less concerned about attitudes to programmes than they were about viewing figures, and this marked the start of the frequent measurement of audience totals.[6] With the establishment of commercial television, individual broadcasters began to gather their own ratings data, as well as viewer opinion in the form of the AI, until 1981, when the major industry players set up the Broadcasters' Audience Research Board (BARB) to compile this information.[6][1][7] In 2002, BARB ceased to compile AI data; as of January 2008, the BBC carries out its own research.[2] BARB, the Broadcasters Audience Research Board, is the organisation that compiles television ratings in the UK. It was created to replace a previous system, where the BBC and ITV companies compiled their own ratings. ...


Method

Under BARB, viewing diaries were sent to 2,000 people on a panel made up of members of the public each week, with a further four panels consisting of 1,000 people each receiving diaries every four weeks.[1] The BBC now uses a panel of up to 4,000 people.[8] The members of the panels grade programmes from 0 to 10 and are also asked why they watched a particular programme. They are given three options:

  • "Made a special effort."
  • "Made some effort."
  • "Because it was on."[1]

The results are used to calculate a score between 0 and 100.[5] The viewing diaries come with questionnaire booklets which can be tailored to ask questions of specific programmes or series.[1] The BBC in particular has used this service to gauge the attitudes of younger people towards its programmes, as well as what members of the public were doing when watching, and their moods.[8]


See also

BARB, the Broadcasters Audience Research Board, is the organisation that compiles television ratings in the UK. It was created to replace a previous system, where the BBC and ITV companies compiled their own ratings. ... It has been suggested that ratings point be merged into this article or section. ... When TV viewers or entertainment professionals in the United States mention ratings they are often referring to Nielsen Ratings, a system developed by Nielsen Media Research to determine the audience size and composition of television programming. ...

References

  1. ^ a b c d e f ITC Notes. Ofcom. Retrieved on 2008-01-08.
  2. ^ a b c "No one knows if anybody's watching", The Telegraph, 2002-01-11. Retrieved on 2008-01-09. 
  3. ^ Ian Beaumont (2004-01-01). Street Cred. Transdiffusion Broadcasting System. Retrieved on 2008-01-08.
  4. ^ ""Runaway Bride" AI Figure", Outpost Gallifrey, 2006-12-28. Retrieved on 2008-01-09. 
  5. ^ a b Audience research team glossary of terms. BBC. Retrieved on 2008-01-08.
  6. ^ a b c Andy Beckett. "Numbers game", The Guardian, 2001-11-20. Retrieved on 2008-01-09. 
  7. ^ About BARB. BARB. Retrieved on 2008-01-09.
  8. ^ a b James Holden. "Watching you, watching us", BBC News Online, 2004-12-08. Retrieved on 2008-01-08. 

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External links

  • BARB website

 
 

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