CBS has announced that Big Brother 7: All-Stars' nomination episodes, previously scheduled to air, as they have for the last two Big Brother editions, on Saturday nights, will instead air in the Sundays at 8PM ET/PT time period that The Amazing Race will be moving to this fall. Big Brother 7: All-Stars will still premiere on Thursday, July 6 and air regularly on Tuesdays and Thursdays at 8PM ET/PT.

According to CBS executive Kelly Kahl, the move is intended to give Big Brother's All-Star edition exposure on a more heavily watched night. "We're trying to raise the profile of the show a little bit," Kahl told Daily Variety. "It'll hopefully lift the Tuesday and Thursday airings as well."

CBS is also hopeful that moving Big Brother's nomination episodes to Sundays will help pave the way for The Amazing Race, which after bouncing through three different weeknight time periods for its recently-concluded ninth edition, is scheduled to air in the Sundays at 8PM ET/PT time period this fall. "It seems like a good idea to get some reality fans thinking about CBS Sundays at 8," explained Kahl.

As part of the move, CBS will also start airing repeats of Cold Case and Without A Trace -- the two shows that, along with The Amazing Race, will form the network's new 8-11PM ET/PT Sunday night lineup beginning this fall -- on Sundays beginning with Big Brother 7: All-Stars' first Sunday night broadcast on July 16.

Prior to its premiere, CBS will air Big Brother All-Stars: America's Choice, a casting special that will reveal the identities of twenty previous Big Brother houseguests that are being considered for the show's All-Star edition, on Wednesday, June 21 at 8PM ET/PT.

After the casting special broadcast, viewers will be able to visit and vote for whichever America's Choice finalists they'd like to see in the All-Stars cast. Voting will last a week, with the top three male and female vote-getters automatically becoming part of the All-Star edition's cast and Big Brother's producers determining which six other finalists will join the group. Although voting will end on June 28, neither the public nor the finalists will learn of the results until Big Brother 7: All-Stars premieres live on July 6.