Radio had a fantastic and profound effect in 
retrieving the ordinary tribal consciousness of 
Germany in the ’20s and ’30s. TV, which is an 
addictive inner trip (regardless of program), sent 
American youth in pursuit of the occult and group 
awareness. Since there are no visual or quantifiable 
connections  between radio and TV and their effects, 
Western man humbly and dumbly submits to their 
magic. 

Marshall McLuhan, “Violence of the Media,” Marshall  
McLuhan: The Man and His Message , (Golden, 1989), p.95.