Television is used to promote commercial, social and political agendas. Public service announcements (including those paid for by governing bodies or politicians), news and current affairs, television advertisements, advertorials and talk shows are used to influence public opinion. The Cultivation Hypothesis suggests that some viewers may begin to repeat questionable or even blatantly fictitious information gleaned from the media as if it were factual. Considerable debate remains, however, whether the Cultivation Hypothesis is well supported by scientific literature, however, the effectiveness of television for propaganda (including commercial advertising) is unsurpassed. The US military and State Department often turn to media to broadcast into hostile territories or nations."Psychological Operations Field Manual No.33-1" published in August 1979 by Department of the Army Headquarters in Washington DC; and "Psychological Operations (PSYOP) Media Subcourse PO-0816" by The Army Institute for Professional Development, published in 1983
