Continuous monitoring of audio- and television audience. Tv exposure and evaluation of programs / basic questionnaire contains information on characteristics of tv-set and viewing behaviour / program preferences / exposure to radio / leisure and cultural behaviour / political interest and knowledge / reading of daily newspapers / preferences for broadcasting corporations / sense of political efficacy / anomy / opinion leadership / detailed data on occupation / social integration. Background variables: basic characteristics/ residence/ household characteristics/ occupation/employment/ income/capital assets/ education/ social class/ politics/ religion/ consumption of durables/ readership, mass media, and 'cultural' exposure/ organizational membership