templeton, a pioneer in global investing for over 50 years, gain from our perspective. this program is made possible by contributions to your pbs station from viewers like you. thank you. captioning sponsored by wpbt >> susie: good evening, everyone. tonight, we'll look at one of the most common business units in this country and around the world-- the family-owned firm. tom. >> tom: susie, given america's agricultural past, the first family firms in this country were farms. recently, one of the longest- running family farms-- the tuttle farm in dover, new hampshire-- was put up for sale. it's been in the family since 1632. lucy tuttle, a member of the 11th generation, says her children are interested in doing other things. but she says, for centuries, there was no question that someone in the family would take over the farm. >> and there was always somebody who wanted to continue because, you know, that's what you did. you all lived in one house and everybody did the work. and the youngest son-- or at least one of the sons-- would be there to carry on. i'm sure nobody