Both returning for new episodes on ABC, Millionaire could only muster 5m (1.1) at 8pm, after which a two-hour Extreme Makeover: Weight Loss Edition recorded 3.9m (1.2).
Olympics fever boosted NBC as the Trials dominated viewing all night. Coverage of the Track and Field raced off with 5.6m (1.4), then the audience rose to 7.7m (2.1) for swimming, before the network reached a peak of 9.9m (3.2) for women's gymnastics.
Elsewhere, reruns of The Simpsons (3.1m/1.43), Bob's Burgers (2.4m/1.2), Family Guy (3.1m/1.4) and American Dad (3.1m/1.4) were fairly popular on Fox.
In contrast, CBS's scripted reruns of Hawaii Five-0 (4.6m/0.7), The Good Wife (3.9m/0.5) and The Mentalist (4.3m/0.7) failed to make much of an impact in the 18-49 adult demos.