I consider BBC Four to be the 'Jewel in the Crown' of BBC TV. The subjects covered are wide ranging and extremely well researched and it is so refreshing to turn on the television and find a programme that is both entertaining and in many cases educational. Just this week we have The Story of Maths in which Professor Marcus du Sautoy guides us through the history of mathematics, Andrew Mars Britain From Above, showing how the country has been shaped over the years and a repeated classic Betjeman's Metroland where Sir John shows tells in his wonderful style how the Metropolitan line extended the suburban boundaries of London during the mid - war period. For a little light relief That Mitchell and Webb Look is a good chuckle. Quite a few of the programmes on offer are made in conjunction with the Open University and these I find of particular interest. Altogether a marvellous channel which I believe shows the BBC at it's very best. With quality and in depth detail like this it makes the licence fee a little easier to accept.