Here in the Chicago area, WTTW carried it (legacy carryover from WYCC), but dropped it recently. They are currently carrying FNX instead (First Nations eXperience, a native American network.)
I saw this note on Wikipedia:
On January 8, 2020, MHz Networks announced the closure of MHz Worldview as they transition to digital streaming services. The network shut down at Midnight Eastern Time on March 1, 2020.. Near the closure, the many television stations that had programming from MHz switched to different networks, including the World Channel and First Nations Experience.
Just realized I had posted about this earlier: