Bally Sports on Channels via hdmi tuning card or ATSC Modulator

I saw this posted on one of the threads about Bally Sports no longer showing up on TV Everywhere as possible solutions to get it on Channels. This is what was posted:

If you want access through Channels there are some solutions. If you have access to a stb and a component or hdmi tuning card simply import it in via m3u from NextPVR. Another option, if you have an ATSC tuner like a HDHomeRun is to get an ATSC modulator from the likes of ChannelMaster and import the stream from any stb, computer or app on a Roku, Firestick, Google TV or otherwise as a dedicated ATSC channel and then just map in the guide data.

So there's two suggested solutions there: HDMI tuning card and ATSC modulator. So, I have a couple initial questions. With the HDMI tuning card, what kind of set top box would work?

The second question is about the ATSC modulator option. How is this option using an app setup and does it come through as a live channel an Channels with guide data and the ability to record?