Nas: ‘King’s Disease II,’ Respect for Hit-Boy, and the New Generation of Hip-Hop | Apple Music
There are quite few ways of streaming your media from your NAS to your AppleTV. The simplest option is direct DLNA streaming. But if you want the player to remember where you finished watching and continue from there than built in DS Video app would do that for you. You can achieve the same with Plex or Emby.