BBC One's ballroom dancing show benefited from its later timeslot, adding 630k to its audience week-on-week.
Between 6.30pm and 7.45pm, the programme averaged 11.35m (45.3%), peaking with a hefty 13.21m (48.7%) during the last 15 minutes.
Later on the channel, Merlin picked up a commendable 6.33m (23.4%) at 7.45pm, Casualty gripped 4.32m (16.2%) at 8.50pm, and Armstrong & Miller amused 2.6m at 9.30pm.
Meanwhile on ITV1, The X Factor's ratings went in the opposite direction, albeit losing only 200k on last week. Airing from 8pm, the talent contest logged 13.21m (48.7%), securing a high of 13.6m (50.5%) between 9pm and 9.15pm.
Prior to that, Harry Hill's TV Burp pulled in a respectable 6.77m (26.1%) at 7.30pm, while All Star Family Fortunes and You've Been Framed grabbed modest audiences of 3.33m (14.4%) and 3.86m (15.2%) earlier in the evening.
Post-X Factor, I'm A Celebrity... Get Me Out Of Here recovered from its clash with Children In Need to manage 9.17m (38.5%), then Piers Morgan's interview with Kelly Osbourne on Life Stories mustered 3.55m (20%) from 10.30pm.
Have I Got News For You gave BBC Two its biggest audience, with 2.41m (9.9%) at 9.15pm, after which QI XL interested 1.91m (9%). Earlier, American Dream put in 1.18m (4.3%).
Apocalypse: The Second World War and Pillars Of The Earth fetched 922k (3.4%) and 1.14m (5%) for Channel 4, while The Mentalist, NCIS and a double bill of CSI notched up respective audiences of 385k (1.5%), 852k (3.2%), 1.11m (4.6%) and 1m (5.4%) on Channel 5.
Overall, ITV1 easily claimed victory in primetime with a share of 36.1% to BBC One's 23.7%. BBC Two was third with 6.9%, while Channel 4 and Channel 5 followed with 3.7% (+1: 0.3%) at 3.5%.
Over in the multichannel world, ITV2 spinoffs The Xtra Factor and I'm A Celebrity Get Me Out Of Here Now could only pull in 492k (2.1%) and 561k (3.4%) respectively.
BARB ratings data supplied by Attentional