Yes you read that correctly, WMSN-DT and all of its subchannels are completely and totally out for OTA viewers. They say that the power is out at the transmitter site, which comes as a big surprise. When I toured the facility, it had enough generating capacity to keep the lights on in all of Madison! Apparently none of those gigantic power plants belong to WMSN.

If you want to see the Packers game, you'll need to have a pre-existing Charter HD account (something that Charter has been unable to accomplish IME). So in other words, start aiming your antennas to other towns.
This is an extreme embarrassment for WMSN, and IME the kind of mistake that gets people fired.