As a viewing alternative to 60 Minutes, which will be mostly reruns, this four-week Sunday run of documentaries, overseen by the former surgeon general, is pretty interesting. This edition is entitled ''Listening to Teenagers,'' and it focuses on Southwest High School in Minneapolis.
In C. Everett Koop, M.D. he interviews teenage girls with babies unwed mothers who drop their children off every morning at the school's own day-care center; he talks with students about drug abuse and their problems with their parents. After watching Koop chat with a variety of doctors and psychologists, it's easy to conclude that being a teenager these days is a lot harder than it looks on, say, Growing Pains.
With his candy-bar-size bow ties and no-mustache beard, Koop has the presence of a natural TV star. If the scripts are just a tad banal ''Teenagers,'' he tells us, ''are walking through a mine field called adolescence'' his intelligence and sincerity come through in his deft, informed interviewing style. B