What's the difference between distribution and consumption?

Radio distribution and consumption are linked. In fact, they are words for two sides of the same thing:
distribution means the ways a radio institution distributes (puts out) its content to audiences, for example by broadcasting on FM and digital radios, setting up a website and creating podcasts; making its shows available on iPlayer etc
consumption means the ways the audience ('consumers') actually 'consume' (listens to, read, watch, interact with) the content that the radio institution puts out. You need to find out about patterns of consumption and how they are changing. Often radio institutions will change their distribution methods to meet the changing habits of consumers. For example, if a lot of people want to consume radio via their mobile phones, radio institutions will distribute their content via mobile networks. You yourself are a consumer and you should include information about your own consumption habits in your case study of the BBC. For example, how do you prefer to listen to radio and why? (Even if you do not listen to radio, this is still an example of your habits as a consumer - i.e., if you get all your music from iTunes/downloads and your news from the internet, you are an example of the reasons radio institutions are having to change their distribution processes).