According to an interview, the GfK (Gesellschaft für Konsumforschung, Society for Consumer Research), replaced in the movie by the IMA, enjoyed watching the film but explained, that the situation could not be realized in real life.
According to the GfK the filmmakers disguised themselves as journalists for research for this movie. They never admitted to the workers of the GfK that they are making a movie about TV ratings based on their research.