Th 10pm hour-long show, which featured Bruce Forsyth and Ross Kemp as guests, drew 1.92m (11.5%) after a lead in from Big Brother, which took 1.95m (9.1%) at 9pm.
New BBC One series Casualty 1909 put in 3.5m (16.3%) in the 9pm hour, while the second episode of ITV1's Kingdom, starring Stephen Fry, was seen by 4.53m (21.1%). The Incredible Human Journey, the final part of a BBC Two series, attracted 1.86m (8.7%).
Earlier, at 8pm, the second episode of BBC One drama Hope Springs pulled in 4.16m (20.3%), and 3.26m (16%) tuned in for Stephen Tompkinson's African Balloon Adventure on ITV1.
Wife Swap had 1.56m (7.7%) for Channel 4 and BBC Two's South Pacific managed 1.93m (9.4%).
Five's film fest kicked off with Jackie Chan's The Medallion, which put in 1.12m (5.7%) between 7.15pm and 9pm. Action comedy Welcome To The Jungle, starring Seann William Scott, then averaged 1.39m (7.3%) between 9pm and 11pm.
Overall, BBC One came top during primetime with an average share of 18.8%, just ahead of ITV1's 17.8%. Channel 4 was third with 8.1% (+1: 0.8%), followed by BBC Two with 7.2% and Five's 6.4%.
Elsewhere, the new episode of House delivered 604k (3.1%) for Sky1 during the 9pm hour, while Supernatural logged 508k (2.6%) for ITV2.
Ratings data supplied by Attentional