The X Factor results show was watched by 14.79m (48.7%) on ITV1 in the 8pm hour, peaking at a massive 15.92m (50.5%) for the final 15 minutes.
After the programme, the exits of Alison Hammond and Britt Ekland from I'm a Celebrity... Get Me Out of Here! pulled in 10.54m (38.6%) from 9pm. Earlier in the evening, All Star Family Fortunes returned with 5.19m (18.2%) on ITV1 from 7.15pm.
On BBC One, Strictly Come Dancing averaged 11.57m (40.5%) from 7.30pm, as Patsy Kensit became the latest celebrity to be eliminated from this year's competition.
Elsewhere on the channel, Countryfile brought in 7.55m (29.5%) from 6.30pm, Antiques Roadshow managed 6.36m (20.9%) in the 8pm hour and Garrow's Law continued with 4.88m (17%) from 9pm.
BBC Two's live coverage of the ATP World Tour Finals entertained 1.6m (6.6%) between 5.15pm and 7.45pm. It was followed by Coast, which had 640k (2.2%) in the 15 minutes to 8pm.
Making Scotland's Landscape grabbed 970k (3.2%) on BBC Two in the 8pm hour, before documentary Donald Trump: All American Billionaire cashed in with 1.59m (5.5%). A repeat of The Trip amused 750k (3%) from 10pm, and then Match Of The Day 2 took 2.42m (15.8%).
Over at Channel 4, Undercover Boss USA commanded 830k (2.7%) in the 8pm hour and 95k (0.3%) on timeshift. It was followed by new drama Any Human Heart, which entertained 1.2m (4.4%) and 77k (0.4%) on +1. Desperate Housewives then had 860k (5.5%) and 116k (1.5%) an hour later.
Screenings of Spider-Man 3 and Beowulf attracted respective audiences of 1.61m (5.8%) and 1.93m (8%) to Channel 5 from 6pm.
Overall, ITV1 owned primetime with 34.4% against BBC One's 23%. Channel 5 came in third with 6.8%, followed by BBC Two with 5.2% and Channel 4 with 4.3% (+1: 0.4%).
Elsewhere, The Xtra Factor gained 793k (2.8%) on ITV2 from 9pm and 82k (0.4%) on timeshift. It was followed by I'm a Celebrity... Get Me Out of Here Now!, which had 931k (6.1%) and 71k (1%) an hour later
BARB ratings data supplied by Attentional