that it is often difficult to tell where one begins and the other 
ends.” Exactly the same mix is used in entertainment in Europe 
and America alike. Seen outside the United States, any 
American movie looks like subtle political propaganda. 
Acceptable entertainment has to flatter and exploit the cultural 
and political assumptions of the land of its origin. These 
unspoken presuppositions also serve to blind people to the 
most obvious facts about a new medium like TV.

     In a group of simulcasts of several media done in Toronto 
a few years back, TV did a strange flip. Four randomized groups 
of university students were given the same information at the 
same time about the structure of preliterate languages. One 
group received it via radio, one from TV, one by lecture, and one 
read it. For all but the reader group, the information was 
passed along in straight verbal flow by the same speaker