Also, I do not know a thing about hypnosis, but I am aware of hypnotic-like mesmerized emotion-based irrational evil lulling to support an ideology/movement/cause. (Hitler, Stalin, Mao, Che, etc)
Does hypnosis require visual as well as audio?
For example: conservative talk radio apparently is successful, while liberal talk radio is not.
Is this because when one is listening to words, unaccompanied by moving graphics, symbols, photos of dead bloody children, etc, one is less likely to be sucked into propaganda?
If this is the case, liberal talk radio would be very unpersuasive, not to mentioned unappealing to the type of people who prefer to have their heart strings tugged at as opposed to their rational minds being exercised.
Or
Is it because television is so saturated with left-wing propaganda that conservatives rally around their radio shows to hear what they want to hear. That is, with the monopoly that liberals have of TV driving away conservatives, the conservative audience turns to radio and makes up a high percentage of political radio listeners.