'Traffic Cops', a documentary series about traffic police in Humberside, narrated by Jamie Theakston, attracted 4.5m viewers and a 20% share of the 9pm-10pm audience.
Last night's instalment, called 'Bad Boys', saw the cops take on young car crooks playing dangerous games of "catch-me-if-you-can".
The second part of ITV1's bank fraud drama 'Wired', starring Laurence Fox and Jodie Whittaker, drew 4m viewers, 800,000 down on its debut last week, giving it a 17.7% share.
BBC Two's six-part 'Amazon with Bruce Parry' documentary concluded last night with 2.9m viewers (12.8%) tuning in to see Parry made an honorary son of the Kayapo tribe.
'Extraordinary Animals in the Womb', a documentary showing the development of a kangaroo, a shark, a penguin and a wasp from conception to birth, netted 1.5m viewers and a 7.2% share of the 9pm-10.30pm audience for Channel 4. Including Channel 4+1 figures it reached 1.7m.
Five's adventure series 'Unbreakable', which last night saw the volunteers endure a week of gruelling navy training in Portsmouth, pulled in 700,000 viewers and a 3% share in the same slot.