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.
Watched an episode or clip for the second time
Watched 15 episodes on USA
Watched first full episode on USA
Launched USA for the first time
Success, Enjoy the Show
Pinned USA to the home page
Watch 20 clips on USA
Pin a show to the home page
Watch content from 3 or more different shows
Watch 1000 minutes of video