The increasing convergence between film and television has brought about a need for an encyclopedia linking the two media. The volume covered here is devoted to the area of technology, to film and to television individually, and to the interrelationships which have developed between them. A historical framework is also provided, as is a survey of the roles of principal creative technicians. The terminology is manipulated in order to accommodate both British and North American readers. Long articles are devoted to more than a hundred main subjects, and some fifteen hundred shorter entries are supplemented with a synoptic survey embracing the whole field of technology covered by the encyclopedia. The encyclopedia is cross-referenced and includes a comprehensive bibliography. It is illustrated by nearly one thousand line-drawings and indexed in order to give full access to material which would otherwise remain embedded in long articles. (SH)