Most viewers who tune in to the first episode of the program will do so because of the network's advertisement for the program. Most people who tune in to the first episode of the program and become loyal viewers will not have tuned in to the first episode as a result of the network's advertisement for the program. If the advertisement that the program's producers favored were used instead of the network's advertisement, almost all of the viewers who tuned in to the first episode would tune in to subsequent episodes as well. The advertisement that the program's producers favored would not have grossly misrepresented what the program would be like.
The television network' s advertisement for its new medical drama grossly misrepresents what that program is like. Thus, it will not as effectively attract the sort of viewers likely to continue watching the program as would the advertisement that the program' s producers favored; people who tune in to the first episode based on false expectations will be unlikely to watch subsequent episodes.
The argument relies on which one of the following assumptions?