BBC Two drama Collateral started with a strong 3.2 million viewers last night.
Set over the course of four days, the four-part drama explores the spiralling repercussions surrounding the fatal shooting of a pizza delivery man. Refusing to accept this is a random act of senseless violence, tough and single-minded Detective Inspector Kip Glaspie (played by Carey Mulligan) is determined to discover if there is a darker truth.
The opening episode averaged 3.2 million viewers at 9PM, beating BBC One which had fewer than two million with a Julius Caesar documentary.
However it was ITV who won the slot with their new drama Trauma.
The three-part psychological thriller centres on the lives of two fathers, Dan and Jon, whose lives collide when Dan’s 15-year-old son Alex is stabbed and tragically dies in the trauma department attended by high-achieving consultant Jon Allerton, who is blamed for the death.
The first episode averaged 4.9 million viewers and continues tonight on ITV at 9PM.
Elsewhere in last night's (12 February 2018) ratings Coronation Street topped the soaps with 7.3 million and 7 million viewers for its two episodes. Emmerdale had 6.6 million while EastEnders averaged 5.4 million.
Meanwhile, on ITV2, Survival of the Fittest continued with 400,000 viewers, down around 200,000 from launch.
On E4, Celebs Go Dating matched the numbers, also with 400,000 viewers.