WLIW (TV)

WLIW (channel 21), branded on-air as WLIW21, is a non-commercial educational public television station licensed to Garden City, New York, United States. It is owned by the WNET Group, which also owns fellow PBS member station WNET (channel 13) in New York City, and New Jersey's statewide public television network, NJ PBS.

WLIW21 primarily serves Long Island and the outer boroughs of New York City. Its programming includes a mix of national PBS programs, locally produced shows focusing on Long Island and the greater New York area, and educational content. Key areas of focus include arts and culture, news and public affairs, science and nature, and children's programming.

The station's studios are located in Plainview, New York. WLIW21's signal is broadcast from a transmitter atop the One World Trade Center in Manhattan. WLIW21 also operates a secondary digital subchannel, WLIW World, which carries news and documentary programming.