To collect data on network television news content in Britain as part of a study on television reporting of industrial relations. Variables Bulletin profiles (length, number and duration of items); category profiles (distribution of items by category, relative duration of categories); story categories (the flexibility of categories, sources of variation in story categories); placement (the ordering of items); technical inputs (varieties of film, electronic inputs); graphic inputs (captions, pictures, marks, etc.); interviews (details of media and non-media personnel).