How to make USB LCD TVs play content from NAS?

Question

USB

Welcome all!
Available :
- LAN with NAS Synology DiskStation DS213J
- n LCD TVs with HDMI, USB but no Ethernet
Required : Teach LCD TVs to play content from NAS.
TVs can play videos from USB sticks.
It is clear that every TV needs a "crutch" like Dune HD Connect, but it's quite expensive.
Advise not very expensive adapters, perhaps there is a USB-> Ethernet with drive emulation from a network address ...
Thank you.

Answer 1

You can buy Chinese android sticks that are plugged into hdmi.
Probably the cheapest option.
Somewhere else there was a flash drive in two parts, which wirelessly fumbled files for its second part (on the receiver device, at the same time, a regular flash drive for a couple of terabytes was emulated), but it cost quite a lot (3 thousand in rubles) and I already found it I can not. The idea must have died.