The reality show topped the night with 6.3 million (2.3) in the 9pm hour, rising considerably on the 1.8 demo rating it had the week before.
The Tiffany Network's Big Bang Theory repeat was the most-watched programme in terms of viewers, amusing 8.1m (2.1) at 8pm.
Meanwhile, Wipeout grabbed 5.5m (1.6) for ABC, after which 3.5m (1.2) watched a Time Machine Chefs special.
Rookie Blue returned for new episodes with 5m (1.3), showing a healthy improvement on its last instalment.
Elsewhere, 8pm's Saving Hope (4.2m/0.9) and 9pm's Rock Center with Brian Williams (5.2m/1.2) soared in popularity for NBC, while Fox's NFL pre-season football coverage scored 5.2m (1.9) between 8pm and 10pm.