[Link: remotecentral.com]

This is a problem first posted in this forum back in 2008.  RB SMITH2000 from Denver posted a solution to this problem at the bottom of the page.

If that does work...

Note that the quality of the tuner in each TV model varies. Consumer Reports actually did a comparison of the reception in digital TV converter boxes. WNED's signal is probably too weak to be picked up by your SONY 4K. Check to see if your SONY TV has a signal quality feature.

Also, tune to digital channel 43 and see if you get anything.  Channel 43-7 does display WNED-FM's radio signal on some TVs.

[Link: us.en.kb.sony.com]

This is a link to SONY's website if a factory reset is necessary.