What is "wpbs-dt"

WPBS-DT is the Public Broadcasting Service (PBS) member station serving the North Country of New York state, licensed to Watertown. The station operates a full-time satellite, WNPI-DT, licensed to Norwood. The station also has significant viewership in much of eastern Ontario, Canada, including Ottawa and Kingston. Like San Diego, California's KPBS, WPBS-TV is a border station: in this case, serving viewers in both the US and Canada.