Here is the full list of all 10 USA NOW achievements worth 0 gamerscore. It takes around 15-20 hours to unlock all of the achievements on Xbox One.
Launched USA for the first time
Success, Enjoy the Show
Watch first full episode on USA
Watch 15 episodes on USA
Watch 20 clips on USA
Pin USA to the home page
Pin a show to the home page
Watch an episode or clip for the second time
Watch content from 3 or more different shows
Watch 1000 minutes of video