Why do people from other states call Les Feldick about his classes?

Les explains that during a break, Helen put the Oklahoma class information on the board. He specifies Oklahoma because many people from other states are calling, wanting to know where he is having classes. He connects this to the little canned announcement about being interested in a class in an area. When the program began, they never dreamed it would last longer than six months or go beyond the area right around Tulsa. But now that it reaches coast to coast on satellite and various other cities, people call asking where he has a class in their area. So he qualifies that the classes being discussed are only in eastern Oklahoma, and Helen has them on the board. He invites people to come join, noting the classes include discussion, questions, and fellowship.