The NBC sitcom's first season ended with a modest 3.1m (1.2) at 8.30pm, falling two demo points and 400k on last week's penultimate edition.
Meanwhile, the 8pm finale of Whitney fared better with 4.2m (1.5), but viewers abandoned the Peacock Network at 9pm as Bent could only muster 2.6m (0.9) and 2.4m (0.8) for its double bill.
Rock Centre with Brian Williams rounded off a disappointing evening with 3.3m (0.8).
America's Next Top Model anchored The CW's schedule with 1.4m (0.7) in the 9pm hour, prior to which 1.3m (0.6) watched One Tree Hill.
American Idol's solid audience of 17.1m (5.0) between 8pm and 10pm kept Fox comfortably in the lead over primetime.
CBS's only new broadcast, Survivor: One World, entertained 9.6m (2.8) at 8pm. Criminal Minds (7.5m/1.7) and CSI (7.8m/1.7) followed.
Happy Endings climbed to 4.2m (1.9) for ABC at 9.30pm, while reruns of The Middle (4.3m/1.2), Suburgatory (3.8m/1.2), Modern Family (5.3m/1.9) and Missing (4.1m/0.9) aired elsewhere.