Kian Egan's victory in the finale of this year's ITV series attracted 10.97 million (42.0%) at 9pm, with an added 327,000 (1.8%) tuning in on +1. This is significantly up from last year's 9.5 million total.
Earlier, The X Factor climbed by over a million viewers from last Sunday's results show to 9.01m (34.3%) at 8pm (221k/0.8% on +1).
On BBC One, Strictly Come Dancing dropped nearly a million viewers to 9.37m (35.2%) at 7.15pm.
The Paradise dipped to 4.15m (15.8%) at 8pm for its final episode. Britain and the Sea interested 2.69m (10.3%) at 9pm.
BBC Two's coverage of the Snooker UK Championship final scored an average 1.51m (6.1%) from 7pm.
On Channel 4, Secrets of the Terracotta Warriors intrigued 2.36m (9.0%) at 8pm (277k/1.1%), followed by the latest Homeland with 1.66m (6.4%) at 9pm (129k/0.7%).
Channel 5's broadcast of Robin Hood: Prince of Thieves thrilled 1.14m (6.3%) at 9pm (111k/1.0%). On BBC Three, Family Guy tickled 812k (3.8%) at 10pm.
ITV2's The Xtra Factor entertained 355k (1.4%) at 9pm, followed by I'm a Celebrity... Now! with 1.55m (8.9%) at 10pm (145k/1.5%).
BARB ratings data supplied by Attentional