The season finale of Discovery’s first true-crime series Killing Fields clocked 2.45 million viewers in Live + 3 Day viewing – a 44% growth from its debut crowd of 1.7M. The series, from Barry Levinson and Tom Fontana, also delivered a season high in the 25-54 demographic, 1.3M v its first episode’s 762K viewers in the demo. Over its run, the series grew in the demo every week,  as it took viewers inside an active criminal investigation.
The series launched well on January 5, becoming Discovery’s most watched Tuesday debut since Alaskan Bush People. The launch was Discovery’s highest rated Tuesday series debut in women demographics — a goal for the network of Discovery Channel chief Rich Ross (who also oversees Animal Planet and Science Channel).
Airing in the teeth of cable news networks’ coverage of the New Hampshire primary, Tuesday’s Killing Fields wrapper was the No. 1 unscripted, non-news show on all of cable at 10 PM in all 25-54 demos and in total viewers.
 Over its run, Killing Fields became Discovery’s highest-rated Tuesday freshman series since May 2014 both in the demo  and in overall audience.