I also went from Directv satellite to streaming through the app. I was getting used to it, but bought a Gemini Air and I'm glad I did. It's much easier to navigate the guide.
You might want to consider Directv Stream. I was a satellite customer for 20 years and went to streaming last fall. It takes some getting used to, but I'm happy I made the switch.
The most likely scenario is Directv supplying an HS17 and two clients. The models will depend upon if you want 4k or not. If you get the equipment from Solid Signal you will have to pay out of pocket for them. It's free from Directv.