The two-hour season finale of CBS’ Survivor: Redemption Island beat all comers Sunday night, scoring a preliminary 13.1 million viewers and a 4.0 in the adults 18-49 demographic to help CBS win the evening overall. The Survivor reunion show also scored well, earning a 3.5 in the demo. The block took its toll on the two-hour season finale of ABC’s Desperate Housewives, which grew only slightly week-over-week to a 3.0 rating and 10 million viewers, though it was the night’s most-watched scripted show and gave the network its best total viewers and demo numbers on Sunday with regular programming since early January. Meanwhile, Fox’s animated comedy block was mostly flat with last week, with the season ender of The Cleveland Show (2.3) up a tenth. A two-hour episode of NBC’s Celebrity Apprentice (2.4) also was flat.