Mad Dogs, starring John Simm, Philip Glenister, Max Beesley and Marc Warren, averaged 967k (4%) for Sky1 in the 9pm hour, the second biggest multichannel audience of the night.
Also in the 9pm hour, ITV's new drama Marchlands continued with 5.53m (22.9%), down 660k on last week's debut episode. A further 136k (0.8%) watched on ITV1 +1.
Earlier on ITV1, Tonight: Too Old For TV? - presented by Miriam O'Reilly, who last month won a landmark age discrimination case against the BBC, had 3.19m (14%) from 7.30pm and 20k (0.1%) on timeshift.
On BBC One, The One Show grabbed 4.35m (20.4%) from 7pm. Documentary series Human Planet captivated 4.54m (18.6%) in the 8pm hour, before the comedy double of Come Fly With Me and Not Going Out amused 3.88m (16%) and 3.74m (15.6%) respectively. Later, Question Time brought in 2.64m (20.9%) from 10.45pm.
Channel 4's Relocation, Relocation located 1.78m (7.3%) in the 8pm hour and 262k (1.1%) on timeshift. Rome Wasn't Built In a Day mustered 1.38m (5.7%) from 9pm and 149k (0.8%) on +1. Topical news programme 10'Clock Live was seen by 790k (4.5%) and 107k (1.1%) on +1.
Over at BBC Two, The Culture Show fetched 790k (3.6%) in the 7pm hour, before The Hairy Bikers: Mums Know Best served up 1.91m (7.8%) from 8pm. George VI: The Reluctant King captivated 2.29m (9.5%) in the 9pm hour and Victorian Pharmacy grabbed 790k (4%) from 10pm.
Channel 5's Top Trumps: Earthmovers took 688k (3%) from 7.30pm, before Julius Caesar: Rome Unwrapped had 649 (2.7%). Justin Lee Collins: Turning Japanese appealed to 799k (3.3%) in the 9pm hour and a screening of Just Cause brought in 681m (4.8%) from 10pm.
Overall, ITV1 won primetime with 23.9% against BBC One's 21.4%. BBC Two came in third with 6.4%, ahead of Channel 4 with 5.4% (+1: 0.8%) and Channel 5 with 2.9%.
Elsewhere, Celebrity Juice pulled in 955k (5%) on ITV2 from 10pm and 219k (2%) on timshift. Skins slumped to 534k (3%) on E4 in the 10pm hour and 136k (1.3%) on +1.
BARB ratings data supplied by Attentional