I cut cable TV earlier this year and switched over to online streaming services. I've tried Dish's Sling TV and Sony's PlayStation Vue, but will switch to AT&T's new DirecTV Now service after it starts streaming on Nov. 30.
The service was demonstrated at a media event in New York City on Monday, where I tried it out. You don't need a cable box for it; broadcast content streams over the internet to streaming TV devices like Roku, Apple TV, Chromecast or Amazon's Fire TV. It also works on