The TV musical chairs competition rose to 910k (0.4) in the 8pm hour, pulling in more than 9pm's The Next (840k/0.3).
Elsewhere, Wipeout aired two separate editions, entertaining 5.4m (1.5) at 8pm, and 5.4m (1.7) an hour later.
CBS's Big Brother topped the night in the 18-49 adult demos with 6.4m (2.2), matching last week's strong performance.
Meanwhile, a Big Bang Theory rerun was the most-watched show in terms of total viewers with 7.6m (2.1) at 8pm.
Both Saving Hope (3.7m/0.8) and Rock Centre with Brian Williams (5.4m/1.2) made impressive gains for NBC.