The tables appearing on pp. 248 and 251 are reprinted from Blumler, J.G. and McQuail, D. (1968) Television and Politics: Its Uses and Influence by permission of Faber & Faber Ltd and The University of Chicago Press. The table on p. 253 is reprinted from Robinson, J. (1974) ‘The press as Kingmaker’ by permission of Journalism Quarterly, and that on p. 255 from Robinson, M.J. (1976) ‘American political legitimacy in an era of electronic journalism’, in Cater, D. and Adler, R. (eds) Television as a Social Force: New Approaches to TV Criticism by permission of Praeger Publishers.