The document discusses different methods used by television and film companies to target audiences, including BARB (Broadcasters Audience Research Board), test screenings, focus groups, questionnaires, and collecting user data. BARB monitors TV viewing in over 30,000 UK homes and provides viewing figures. Test screenings involve previewing films for small audiences to gather feedback before public release. Focus groups and questionnaires are also used to obtain opinions from targeted age and demographic groups. Collecting user data helps profile viewers' habits.