The document discusses different methods that media producers use to define their target audiences for documentaries. It describes several profiling methods such as quantitative research using viewing figures, qualitative research through focus groups and interviews, socio-economic status research, demographics research using charts to categorize audiences, psychographics research examining audience behavior and personality, and considering audience age and gender. The document evaluates which methods are most useful for documentary producers, with qualitative research and demographics and psychographics charts seen as providing the most detailed audience information.