Set up your Xbox One’s TV integration and you can do more than just watch TV on your Xbox: you can also stream that live TV from your Xbox to a Windows 10 PC, Windows phone, iPhone, iPad, or Android device over your home network.
There are two catches: First, this feature only works over your home network, so you can’t stream TV over the internet. Second, this only works with over-the-air TV, so you can’t stream live TV from a cable or satellite box. Windows 10’s Xbox-to-PC streaming initially offered this feature, but it was quickly removed. There are probably copyright and licensing concerns getting in the way.