Channel 4 broadcasts many documentaries aimed at shocking viewers into action on important issues, though some argue they are exploitative. A recent documentary on dog fighting received hundreds of complaints for being too graphic. While ratings for most Channel 4 documentaries are over 2 million viewers, this documentary only attracted 147,000 viewers, suggesting many felt it went too far. The documentaries cost around £150,000 on average to produce. While they can benefit subjects by helping problems and boosting careers, many argue they also demoralize and discriminate against those they feature. There is debate around whether Channel 4 should keep broadcasting such sensitive documentaries.