Harry Potter and the Goblet Of Fire averaged a massive 7.23m (28.5%) between 7.10pm and 10pm, keeping the channel ahead of BBC One for the most part of the evening.
Prior to Potter, the reveal of The X Factor's final 12 contestants drew an average of 9.55m (42.7%) over an hour from 6.10pm. The programme was the most-watched show of the day by a comfortable margin and peaked with a colossal 11.43m (47.6%) in the final five minutes.
BBC One's Big Cat Live began with a decent 4.2m (18.8%) opposite The X Factor at 6.10pm, then an hour later, Antiques Roadshow interested 7.12m (28.9%). The Strictly Come Dancing results show, in which TV chef Gary Rhodes was voted off, managed a strong 8.36m (31.5%) from 8.10pm with a peak of 8.8m (32.7%) at 8.45pm.
At 9pm, Tess Of The D'Urbervilles ended its run with a strong 5.61m (22.2%). The drama adaptation, starring Gemma Arterton in the lead role, has averaged 5.32m (21.9%) over its four episodes.
On BBC Two, Charley Boorman: Ireland To Sydney By Any Means drew 2.47m (9.4%) in the 8pm hour, more than doubling the 1.12m (4.3%) for Channel 4's Wife Swap. The channel kept the lead at 9pm, pulling in 2.36m (9.3%) for James May's Big Ideas, then improved further still to an all-day high of 3.5m (20.2%) for Match Of The Day 2. Channel 4 comedy fundraiser The Secret Policeman's Ball averaged 1.78m (7.6%) between 9pm and 10.35pm.
Five enticed 0.65m (2.5%) to Austin Stevens's Adventures: Deadly Jungle Rattlesnake in the 8pm hour, then 1.01m (5.1%) watched the WWII movie Hart's War until 11.25pm.
Overall during primetime, ITV1 had a marginal lead over BBC One, averaging 25.7% to its rival's 25.2%. BBC Two had 10.9% for third, followed by Channel 4 on 5% and Five on 3.7%.
Fringe was beaten by repeats of Katie & Peter: The Next Chapter and Secret Diary Of A Call Girl on ITV2, with respective audiences of 575,000 (2.6%) and 445,000 (2.5%) from 9pm. A Sunday episode of The Xtra Factor also hit the right note, with a massive 1.11m (5.2%) from 7.10pm.
Also rating higher than Fringe was ITV3's Poirot, with 566,000 (2.5%) between 8pm and 10pm; and CSI: New York on Five US, with 320,000 (1.4%) in the 9pm hour. An episode from the original series followed with 426,000 (2.7%).
ITV2 led primetime with a 2.8% average share, followed by ITV3 on 2.1%. Five US, Sky1 and More4 all managed 1.2%.
> Friday Ratings: 'Little Britain USA' starts with 4.7m
> Saturday Ratings: 'X Factor' back ahead of 'Strictly' in ratings
Ratings data supplied by Attentional