Big Brother is being watched.
The premiere of Big Brother: All Stars and an uptick in viewership for Rock Star: Supernova helped CBS win a slow Thursday night, according to Nielsen overnights.
Big Brother won the 8 p.m. time slot in overall households, with a 4.9 rating/9 share, and in the demographic of adults adults 18-49, where it scored a 2.8/10. The episode, in which former cast members returned for a new go-around, was watched by a total of 7.7 million viewers. Big Brother's premiere was down more than 20 percent from the show's 2004 season premiere.
Rock Star, which finds hopeful rockers vying to front the semisupergroup Supernova, improved 14 percent in viewers from its Wednesday night premiere. The show landed second in its time slot, nabbing a 2.6/8.
In a night of mostly reruns, the other nets carted out a few original episodes.
ABC's Master of Champions took fifth in the 8 p.m. hour with an all-new episode scoring 1.5. Fox had a bright spot with an original episode of So You Think You Can Dance, which scored first in its 9 p.m. time slot with a 3.3, and an original episode of NBCs Windfall scored 1.9, landing third in its 10 p.m. time slot.
Overall, CBS led the night with an average 5.1/9, followed by ABC with 4.7/8, Fox with 4.0/4, NBC with a 3.0/5, Univision with 2.1/4, UPN with 1.3/2, and The WB with 1.2/2.