Accessibility still matters, or should still matter even if you’re a radio station, but probably especially if you’re a news radio station.

NPR is fantastic when it comes to accessibility by providing transcripts. I linked the page thinking the transcript will come later as they usually do. But turns out it was a wrong link. See elsewhere for the correct link.

How many TV shows have audio descriptions of non verbal parts of what you see on screen?

More than zero. It's called closed captioning, isn't it? I've quite often seen closed-captioning that put brief written descriptions of non-verbal depictions in bracket, and it's not entirely common either

https://www.automaticsync.com/captionsync/what-qualifies-as-... (see section: "High Quality Captioning")

Close captioning is for people who can’t hear.

I am not aware of many TV shows that offer audio commentary for the visually impaired.

Here is an example of one that does.

https://www.npr.org/2015/04/18/400590705/after-fan-pressure-...

Sorry, I thought that since we were originally talking about transcriptions of radio news broadcasts and accessibility for the hard of hearing that closed-captioning would be appropriate and relevant. But your point is well met.