WATERTOWN, N.Y. – Long-time Canadian broadcasting executive (and Cartt.ca correspondent) Bill Roberts has joined the board of directors at U.S. local public broadcaster WPBS-TV, which serves Northern New York State as well as Ontario’s National Capital Region.Roberts is the former president and CEO of Vision TV, and has served as the secretary general of the North American Broadcasters’ Association, is co-founder of Public Broadcasters International, and past senior vice-president of the Canadian Association of Broadcasters. In addition, he has served as a board member of the Banff Television Festival, as an international director with the National Academy of Television Arts...