WNYF-CD (channel 28) is a low-power, Class A television station in Watertown, New York, United States, affiliated with the Fox network.

Since WNYF-CD's transmitter is not nearly strong enough to cover the entire market, the station can also be seen in 720p high definition on WWNY-TV's second digital subchannel.

After a year of joint operation of WNYF by Smith Broadcasting and United Communications, the latter took complete ownership and made it a full sister to WWNY.

Until September 18, 2006, when UPN shut down and merged with The WB to form The CW, WNYF also ran some programming from the network as a secondary affiliate.

This helps St. Lawrence County viewers who had experienced difficulty receiving WWNY's digital signal after that station transitioned to digital-only broadcasts.

On December 16, 2010, WNYF began to be seen on Time Warner Cable systems in the Burlington, Vermont–Plattsburgh, New York market after the provider dropped that area's affiliate WFFF-TV because of an ongoing retransmission dispute.

[11] On February 8, 2019, Gray Television announced it was purchasing the United stations, including WWNY-TV, WNYF-CD and WWNY-CD.

In advance of the purchase, Gray assumed control of the stations via a local marketing agreement (LMA) on March 1.

[14] On April 11, 2001, WWNY began airing a 35-minute weeknight prime time broadcast at 10 on WNYF called 7 News Tonight on Fox.