Read this: Television - charts | Ofcom
Summary: Note The BBC changed the way it calculated its spend figures from 2005 onwards. The figures for 2002 - 2004 are based on cost per hour averages, while those for 2005 - 2007 are actual spend figures. Comparisons over the period 2002-2007 should therefore be exercised with caution. - ofcom.org.ukwww.ofcom.org.ukTelevision - charts | Ofcom…
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