An interesting letter from Patrick Watson, Chairman Designate of the Canadian Broadcasting Corp. (CBC) in the March '91 issue of "TV Technology." He attributes the difference between television and film's "look" not so much to resolution but to 1) grain and 2) "swarm"--"the constantly swimming and not consciously-perceived movement of grain." He also adds a cultural note--"the reason why audiences believe his- torical or fictional films better when they are film and not video is that they have been trained by the cinema to a kind of look that is associated with that kind of production and have been trained by television to associate the video look with materials that are ephemeral--here today, gone tomorrow--not of enormous consequence but of enormously vivid presence." Well said, Patrick!