Research Article How to do it . . . Appear on television. Br Med J 1978; 2 doi: http://dx.doi.org/10.1136/bmj.2.6145.1145 (Published 21 October 1978) Cite this as: Br Med J 1978;2:1145 Article Related content Metrics Responses Peer review This is a PDF-only article. The first page of the PDF of this article appears below.