Milestones

ENGAGED. Barbara Walters, 53, aggressive, ingratiating celebrity interviewer as co-host of ABC's 20/20 and on her own fre-

quent specials; and Merv Adelson, 55, chairman

and co-founder of Lorimar, corporate

producer of such hit TIV series as Dallas,

Falcon Crest and Knots Landing; in Los

Angeles. The two have been dating for

more than a year. The marriage, sched-

uled for late fall, will be the third for both.