BROADCAST FINALS ABC:  PRESS YOUR LUCK rose 0.07 to 0.51, GENERATION GAP dipped 0.03 to 0.38, and THE CON was down 0.02 to 0.25. CBS:  A 2-hour BIG BROTHER was down 0.05 to 0.71.  It was preceded by reruns at 0.31/0.2...