By the summer ratings math – you have multiple shows average just over 1.5 rating in adults 18-49, you win the night – Fox topped Sunday night with comedy repeats led by The Simpsons (1.7 rating/6 share in 18-49), The Cleveland Show (1.5/5) and Family Guy (1.7/5).

The network also aired an original Sons of Tucson (0.7/2), which finished last in its 7PM slot just like all the other original scripted shows last night: ABC’s Scoundrels (0.8/2) at 9PM, down 20% from its last original 2 weeks ago, and ABC’s The Gates (1.0/3) at 10PM, down a more modest 9%. Scoundrels also squandered a large chunk of its Extreme Makeover: Home Edition (1.3/4) lead-in.

CBS’ first Sunday edition of Big Brother (2.3/7, 10 million viewers overall) was by far the highest-rated program of the night while dipping 8% from its Thursday season premiere. But CBS followed with lower-rated drama repeats of The Mentalist (1.0/3) and canceled Cold Case (1.1/3), allowing Fox to take the 18-49 crown for the night with a 1.4/4. CBS was second in 18-49 (1.3/4) and tops in total viewers, 6.4 million.

Meanwhile, on the heels of its first major Emmy nominations on Thursday, Friday Night Lights (1.0/4, 3.7 million viewers) on Friday averaged its largest audience on NBC in five weeks.