The cable companies know live sports is a game changer, so they likely work it into the contracts that the networks have to go through them, and any streaming needs to include a cable/satellite login. One day (hopefully soon) some of the leagues/networks/conferences will see that some percentage of US households don't have paid TV programming, and that they have a new target audience ready to directly pay them lots of money to get streaming live sports. What percentage of households need to cut the cord for this to be lucrative enough to outweigh the potential flood of more people cutting the cord when this happens? That is the magic question. HBO recently saw the light... hopefully others do soon.