PBS

TELEVISION BROADCASTING; SATELLITE TRANSMISSION SERVICES; CABLE TELEVISION BROADCASTING; CABLE TELEVISION TRANSMISSION SERVICES; AUDIO AND VIDEO BROADCASTING AND TRANSMISSION VIA THE INTERNET; [ INTERACTIVE AND VIDEO CONFERENCING; PROVIDING AN ONLINE ELECTRONIC BULLETIN BOARD FOR TRANSMISSION OF MESSAGES AMONG COMPUTER USERS FOR THE EVALUATION OF EDUCATIONAL RESOURCES IN THE FIELDS OF LITERACY, LIBERAL ARTS, MATH AND SCIENCE AND CONCERNING CULTURAL, EDUCATIONAL, ENTERTAINMENT AND GENERAL INTEREST TOPICS; ] PROVIDING ON-LINE CHAT ROOMS FOR TRANSMISSION OF MESSAGES AMONG COMPUTER USERS CONCERNING TOPICS OF GENERAL INTEREST