One is Technicolor, they take DirecTV feeds and they can be rearranged any which way. Some TVs such as ones on newsroom ceilings maybe controlled by a controller such as a sports bar while others maybe using commercial televisions that are used to decrypt the feeds. They have ATSC decoders so when your station gets pulled from DirecTV you can still monitor it.
Comcast had lineups for organization like college campuses where you don’t need a box for every TV and can login like you do at home for their TVEverywhere lineup. It wouldn’t surprise me if stations went this route. I’m not sure what the type of setup would be needed at the station level though. If everything is in the free and clear that would allow stations to stream and develop an IP option.