The BBC's obsession with Eton (update)

As the BBC have now updated guide to 'Cameron's cabinet I thought that I should update my piece from yesterday. This time let's look at how, if at all, the BBC describe the senior school education of each cabinet member:

David Cameron - 'Old Etonian'
Nick Clegg - no mention - went to the exclusive and expensive Westminster school
William Hague - no mention - went to a Yorkshire comprehensive school
George Osborne - no mention - went to the educational hot-house that is St Paul's school
Theresa May - no mention - went to a local grammar school
Liam Fox - no mention - educated at a state school
Ken Clarke - no mention - educated at a direct grant grammar school
Andrew Lansley - no mention - educated at a direct grant grammar school
Michael Gove - no mention - educated at a mixture of state and private schools
Vince Cable - no mention - educated at grammar school
Ian Duncan Smith - no mention - educated at a naval school (I believe)
Chris Huhne - educated at 'the exclusive Westminster school' (oddly here the BBC mention that this was 'the same school' as Nick Clegg
David Laws - no mention - educated at an independent school
Danny Alexander - no mention - educated at a comprehensive school
Patrick McLoughlin - no mention - educated at a Roman Catholic school (not sure of sector at the time)
Eric Pickles - no mention - went to grammar school
Dominic Grieve - no mention - went to Westminster school (odd no mention this time)
Jeremy Hunt - no mention - went to Charterhouse school (public school)
Baroness Sayeeda Warsi - no mention - went to Birkdale High School (a comprehensive school I believe)
Caroline Spelman - no mention - went to Hertfordshire and Essex High School (a comprehensive school)
Andrew Mitchell - no mention - attended Rugby school (public school)
Philip Hammond - no mention - attended Shenfield High School (now a comprehensive, not sure of its status when he attended it)
Owen Paterson - no mention - attended Radley College (public school)
Cheryl Gillan - no mention - attended Cheltenham Ladies College (public school)
Lord (Tom) Strathclyde - no mention - attended Wellington College (public school)
Sir George Young - 'old Etonian'
Francis Maude - no mention - attended Abingdon school (public school)
Oliver Letwin - 'old Etonian'
David Willetts - no mention - attended King Edward's School, Birmingham (a direct grant grammar school when he was there)


So only two schools warrant a mention in the BBC's descriptions: Eton mentioned every time and always with the phrase 'old Etonian' and Westminster school albeit not in Nick Clegg's pen portrait.

Why are the BBC obsessed with 'old Etonians'? Have they not heard other public schools, such as Radley, Rugby and Wellington college? Does the BBC see itself as fighting a class war? Does the BBC's concentrate on identifying 'old Etonians' because that allows them to ignore the educational past of Labour ministers ex-ministers who went to other public schools?