A further 340k (1.5%) watched on timeshift as Louis Walsh accused Misha Bryan of bullying.
Strictly Come Dancing, however, continued its rise, improving its average by 400k week-on-week to 9.45m (38.7%). The BBC also managed a smaller victory on the multichannels, with a screening of Monty Python's Life of Brian on BBC Four outdoing ITV2's The Xtra Factor. The classic comedy grabbed 975k (4.1%) to the Olly Murs-fronted show's 816k (4.1%).
Elsewhere on ITV1, Harry Hill's TV Burp entertained 4.7m (18.7%), as well as another 241k (0.9%) on +1. The Jonathan Ross Show, which featured some choice quips from Noel Gallagher, brought in 3.48m (17.4%), with an extra 187k (1.5%) on timeshift.
The final of Celebrity Masterchef took 3.87m (21.9%) for BBC One as the winner was revealed, while Merlin followed Strictly with 5.52m (21.4%). Casualty held on to 4.23m (16.6%) as a majority of terrestrial viewers watched The X Factor.
On BBC Two, Dad's Army tickled 2.02m (7.8%), while Britain's Flying Past informed 1.44m (5.6%). QI XL with Stephen Fry quizzed 1.41m (6.6%).
Channel 4 offered desultory resistance to the BBC and ITV juggernauts, with a special edition of Time Team nabbing just 670k (2.7%) at 7pm. World War II: The Last Heroes improved the figure to 730k (2.8%) before Oscar-winning movie The Hurt Locker interested 1.42m (6.8%).
A double bill NCIS was similarly ineffective for Channel 5: the episodes scored 646k (2.5%) and 655k (2.6%) following the 8pm news. A Big Brother highlights show then amassed 938k (4.7%).
Overall, ITV1 took the primetime crown with 28.2%, beating BBC One's 25.5%. BBC Two, Channel 4 and Channel 5 followed with 5.6%, 4.4% and 3.1% respectively.
BARB ratings data supplied by Attentional