Here is a two hour class on the BBC I gave for students at Amiens, but other people might be interested.
In the first part I look at the question "Was the BBC part of the Welfare State?" and compare the BBC with the National Health Service.
In the second part I look at two kinds of radio and TV programme - firstly those concerning music, especially popular music, and secondly documentary series. For each case I try to evaluate what the contribution of public service was - that is to say, can we be sure that the BBC was providing something which commercial television coud not provide?
You will find the MP3 recording here
And the accompanying slides here
BBC history agrégation podcast PowerPoint