Gorney, R., Loye, D., & Steele, G. (1977). Impact of dramatized television entertainment on adult males. American Journal of Psychiatry, 134 (2), 170-174.

Abstract:  Studied the effects of a week’s viewing of 5 types of television programs, including those with predominantly helpful or hurtful content, on the aggressive mood and hurtful behavior of 260 adult men. Within the population studied, a significant decrease in aggressive mood (Nowlis Mood Adjective Checklist) and lower levels of hurtful behavior were found in viewers of helpful programs as compared with a control group, as well as some evidence that emotional arousal in response to helpful programs is negatively correlated with aggressive mood. (17 ref) (PsycINFO Database Record (c) 2004 APA, all rights reserved)