"NEW YORK (AP) -- Game 1 of the NBA finals drew the lowest rating ever for an opening-game in prime time, dropping 19 percent from last year.The San Antonio Spurs' 85-76 victory over the Cleveland Cavaliers on Thursday night earned a 6.3 rating and 11 share on ABC. The previous low was a 6.4/11 in 2003.Last year's Game 1 between Miami and Dallas earned a 7.8 rating and 14 share."More on: NBA Has