Will Savage's secret was revealed to an audience of 737,000 (3.3%) at 7pm and 134k on +1, beating January 2's visit which had 711k.
Earlier at 6.30pm, Channel 4's normal edition took 1.09 million (5.1%) at 6.30pm and 123k on timeshift.
EastEnders topped the night with 8.41m (36%) for a dramatic dinner at the Brannings', which also attracted 587k (3.7%) to BBC Three later at 10.30pm.
Emmerdale logged 7.8m (34.8%) at 7pm (+1: 115k) and 7.29m (30%) at 8pm (+1: 318k) in a double bill which culminated in Thomas King being unmasked as Chas's stalker.
Waterloo Road fetched 3.69m (15.3%) for BBC One in the 8pm hour as Phoenix left the school after winning the lottery.
Meanwhile, Home and Away pulled in 667k (3.4%) at 6pm, after which 477k (3.2%) watched 5*'s first look.
Earlier in the day, Doctors averaged 1.58m (21.9%) on BBC One for an episode titled 'This Is the Song'.
BARB ratings data supplied by Attentional