A 35-minute episode of EastEnders, in which Derek Branning swore to take revenge on brother Max following a row over his attempts to blackmail Tanya, was seen by 8.49m (32.9%) at 9pm.
The BBC Three repeat at 10.30pm was watched by a further 563,000 (2.6%).
Over on ITV, a one-hour Coronation Street special - showing Peter Barlow trying to win back ex-wife Leanne on the eve of her second marriage to Nick Tilsley - was watched by 8.27m (31.7%) at 7.30pm.
A further 378.5k saw the episode on ITV1+1 an hour later.
Emmerdale's Christmas Eve episodes were also two of ITV1's most-watched Christmas Eve primetime programmes, with 6.8m (28.8%) seeing Alex Moss's demise at the hands of killer Cameron Murray between 7pm and 7.30pm.
Cameron had previously confessed to Alex that he had murdered Carl King.
A further 188.1k (0.7%) watched actor Kurtis Stacey's shock exit from the rural soap on ITV+1.
Hollyoaks' Christmas Eve episode, airing at 5.40pm, was seen by 640k (3.3%), as Barney prepared to admit his feelings to Carmel.
An audience of 321.3k (1.5%) watched the first look of Boxing Day's episode on E4 (+1: 165.4k, or 0.7%).
BARB ratings data supplied by Attentional