Viewing habits and viewing patterns of tele viewers. Satisfaction with supply and variety of tv programs at the Dutch tv channels / watching programs on foreign channels in stead of Dutch channels / preference for a particular channel / opinion about Dutch tv programs, as well as on Channel I, II and ( after the introduction of Channel III ) III / familiarity with which broadcasting company transmits on which channel / appreciation of the introduction of a third Dutch tv channel / tuning of the number of tv channels / number of hours r. is watching tv / r.'s preference for Channel I, II or III / frequency of reading newspapers or broadcasting magazines to get informed about the transmitted tv programs / recording tv programs. Background variables: basic characteristics/ residence/ household characteristics/ occupation/employment/ education/ politics/ religion/ consumption of durables/ readership, mass media, and 'cultural' exposure/ organizational membership