Use DLNA a lot of nas boxes and tv's have a DLNA server client built in. Read this for some learning. https://en.wikipedia.org/wiki/Digital_Living_Network_Alliance Also vlc will let you browse your lan for photos or videos.

use this, does just about any protocol in common use today and has a logical workflow https://play.google.com/store/apps/details?id=com.lonelycatgames.Xplore