A New HoH is Crowned and the BoB is Played in Episode 12

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"Knight Moves"

The nominated Houseguests compete in the "Knight Moves" Battle of the Block competition on BIG BROTHER, Sunday, July 20 (8:00 -- 9:00 PM, ET/PT) on the CBS Television Network. Photo: Monty Brinton/CBS ©2014 CBS Broadcasting, Inc. All Rights Reserved