This week's Head of Household, Erika Landin, a pilates instructor from Los Angeles, selected Robert Roman and Justin Giovinco for eviction in the sixth round of "Big Brother 4" nominations on the episode that was broadcast Saturday, Aug. 16 on the CBS Television Network.

Robert is a former restaurant manager from Los Angeles, and Justin is a headhunter from Pittsburgh.

Robert and Justin will learn their fate live on the Wednesday, Aug. 20 (9:00-10:00 PM, live ET/delayed PT) edition of "Big Brother 4," unless one is spared by the winner of the Power of Veto challenge on Tuesday, August 12 (8:00-9:00 PM, ET/PT). If the winner of the Power of Veto chooses to remove Robert or Justin, the Head of Household, Erika, must immediately choose a new nominee.

Immediately following the voting results on August 20, the evicted HouseGuest will exit the house, proceed to the live show studio and talk with host Julie Chen.