Frontline: Divided Memories

Not much space here to convey how important and absorbing Frontline: Divided Memories (PBS, check local listings) is. Dealing with the phenomenon of ''repressed memory,'' in which people claim to remember physical or emotional abuse years after it supposedly occurred, this two-part Frontline interviews wrecked, anguished families-and leaves you to decide who the victims and the victimizers are. By asking straightforward questions, producer Ofra Bikel exposes some therapists in this genre as manipulating, psychobabbling charlatans. ''Why would somebody make up something like that?'' people ask. Bikel's report tries to answer. No matter what you think about repressed memory, watch this. A -KT