Dateline NBC on NBC

In “Father's Day: Now and Forever,” Tom Brokaw explores the legacy of the World War II generation through profiles of four American families. In one segment, a Georgia vet who survived the sinking of the aricraft carrier Yorktown talks about values with his two sons (they're very different). In another, a Wisconsin woman who never knew her father (he died in a bombing run over Italy) tracks down information about him---and finds he died a hero.