I have been told that there is to be an item about pet food on the Channel 4 programme 'Supershoppers'. I have checked the website and cannot see any references to it but if anyone wants to watch, it is on at 8pm tonight.
Edit: It is now On Demand and the piece is right at the end, 40 minutes into the programme. It just looks at the popular Bakers and Pedigree recipes and the issue of meat derivatives. They also speak to a nutritionist. No advice about how to obtain a better product.