The long-running consumer show, hosted by Anne Robinson, grew 400k week-on-week to 5.13m (23.3%) in the 8pm hour.
Interestingly, All Star Mr & Mrs rose an even greater amount, averaging 4.26m (18.3%) for ITV1 and 201k on +1.
Despite the fact DCI Banks rallied to 4.43m (18.8%) on ITV1 (+1: 216k), BBC One also reclaimed its 9pm dominance as the opener of Brazil with Michael Palin earned 4.79m (20.3%).
Grand Designs, following the added interest in its 300th episode the week before, maintained a solid 2.66m (11.3%) for Channel 4 (+1: 455k). Afterwards, Shameless disappointed on Channel 4 with 747k (5%) and 142k on +1.
The Removal Men (1.22m/5.6%) turned out to be Channel 5's best programme of the night, as Dallas fell again to 1.18m (4.7%).
Strictly Come Dancing: It Takes Two (2.04m/10.3%) and a Great British Bake Off Masterclass (2.02m/9.4%) proved an effective pre-watershed combination for BBC Two.
Overall, ITV won primetime with 21.6% (+1: 1%) ahead of BBC One (20.5%), while BBC Two (6.5%) claimed third place, Channel 4 followed with 5.8% (+1: 1%), and Channel 5 was last with 4.1% (+1: 0.3%).
BBC Three's Unsafe Sex in the City (719k/3.1%) replaced ITV2's The Only Way Is Essex (707k/4%) as multichannel leader, though TOWIE added 138k (1.4%).
BARB ratings data supplied by Attentional