The drama, starring Martin Clunes as Dr Martin Ellingham, averaged a healthy 8.81m (35.3%) for ITV1 in the 9pm hour and 269k (1.6%) on +1, easily outperforming The Queen's Palaces's 3.14m (12.6%) on BBC One.
Bang Goes The Theory deduced 3.4m (15.2%) on BBC One from 7.30pm and Little England had 3.1m (13%) on ITV1 from 8pm. Panorama mustered 2.2m (9.1%) on BBC One from 8.30pm and A Question of Sport fetched 2.31m (16.3%) from 10.45pm.
Big Brother stayed strong on Channel 5, attracting 1.4m (8%) in the 10pm hour, before Big Brother's Bit On The Side entertained 543k (5.8%) from 11pm.
Elsewhere on Channel 5, Pawn Stars captivated 395k (1.8%) from 7.30pm, and Royal Navy Submarine Mission submerged 1.12m (4.6%) in the 8pm slot. Jack The Ripper: The Definitive Story interested 825k (3.3%) from 9pm.
Dispatches averaged 1.62m (6.7%) for Channel 4 from 8pm and 312k (1.3%) on +1. Embarrassing Bodies educated 1.76m (7.1%) in the 9pm slot and 367k (2.1%) on Channel 4+1. Rude Tube amused 1.38m (8.3%) from 10pm and 248k (2.8%) on timshift.
Buddha In Suburbia enthralled 800k (3.7%) on BBC Two in the 7pm hour. University Challenge and Antiques Master captivated 2.58m (10.8%) and 1.62m (6.7%) respectively in the 8pm hour. Dragons' Den had 1.99m (8%) from 9pm and 186k (0.7%) on the BBC HD channel. Have I Got Old News For You amused 1.47m (7.6%) from 10pm.
Overall, ITV1 dominated primetime with 28.8% (+1: 0.6%) against BBC One's 17.7%. BBC Two scooped third with 6.8%, followed by Channel 4's 6.4% (+1: 1.1%) and Channel 5's 4%.
Elsewhere, Hell's Kitchen USA continued with 423k (1.7%) on ITV2 from 10pm and 122k (0.7%) on +1, and a screening of Goldeneye entertained 586k (5.2%) and 103k (1.7%).
Victoria Coren's Only Connect quizzed 594k (2.4%) on BBC Four from 8.30pm, before Sandhurst appealed to 614k (2.5%) from 9pm.
BARB ratings data supplied by Attentional