Growth of the 'big four' supermarkets
BBC research has found at least 577 UK supermarkets were approved in the past two years, with campaigners concerned at the growth of the "big four" stores.Discover more of the BBC's in-depth research on supermarkets
In pictures: The future of UK dairy farming?
Panorama went behind the scenes at a mega-dairy farm in the United States, similar to one which is planned to open in LincolnshireView the picture gallery
Panorama reporter Paul Kenyon takes British dairy farmer Tony Gillett to rural Indiana, in the US, to visit a mega-dairy farm similar to one which is planned to open in Lincolnshire.
TV chef Hugh Fearnley-Whittingstall and Stephen Robertson from the British Retail Consortium talk about the changing face of the High Street.
Today supermarkets face concern over the methods used to keep their food prices low. Nearly 40 years ago, supermarkets, suppliers and the government stood accused of allowing the price of food to rocket unchecked.
In this 1973 film, Panorama investigated the cost of eating and found families spending almost half of their weekly income on food.
This is an abridged version of Panorama: The Cost of Eating originally broadcast on 12 March 1973.
Supermarkets: What Price Cheap Food?Read other viewers' comments on the programme or leave your own on our forum
Panorama 2000 to 2008
If you'd like to know more about Panorama programmes between 2000 and 2008, including features, transcripts, video content and more, please click on the link below.Browse the Panorama archive