Snapped: Women Who Kill (1970)

Each episode of this true-crime reality series examines a different felon, usually a female, who has committed murder or attempted murder. The victim is usually the perpetrator's partner. The documentary-style series features interviews with friends and family members of the accused and victims, law-enforcement officials, attorneys and other people with first-hand knowledge of the cases. A staple of Oxygen, "Snapped" has been airing since 2004 and has inspired spin-offs "Snapped: Killer Couples" and "Snapped: She Made Me Do It."