Episode 1 -- Eleven former Teams, who felt short of winning the $1 million prize during their inaugural Race around the globe, return for another adventure in the 18th installment of THE AMAZING RACE: UNFINISHED BUSINESS, premiering on Sunday, Feb. 20 (8:00-9:00 PM, ET/PT), on the CBS Television Network. Father/daughter; Ron and Christina Hsu, shown. Photo: Robert Voets/CBS © CBS Broadcasting, Inc. All Rights Reserved.