What equipment is needed for Digital signage on 10 TV?

Question

Video broadcast

Good afternoon!
I looked on the forums and googled well, I didn’t find anything I needed.
Please help me solve a small problem.
Organizations in several buildings (located next to each other) need to install 10 TVs for synchronized display of video material.
What equipment, TV and software is best suited.
What are the solutions?
All buildings are connected to the same domain network and are located within 1 km.
If through an hdmi spliter with an adapter to rj-45 and then output to the TV through another hdmi splitter, where can I find such splitters and what problems can arise (network sag, loss of quality and signal, etc.)
Thank you very much for your attention. Help me please!

Answer 1

I'm using SpinetiX media players.
The idea is this - each TV clings to a player (the size of a couple of packs of cigarettes), the TV is connected via HDMI, over the network we throw a configured project for playback.
Ideally, special TVs designed for DS are used, because. they have a bunch of handy features, such as power management and so on (the player can start the TV).
You just need to decide on the required power (depending on the complexity of the content).
I believe that the cost for the proposed functionality is quite justified (especially if you want to do it beautifully), with regard to crutch solutions (nettop with Win, plus there is software for playback, etc.), so generally a cut above both from the security side and from fault-tolerance aspects (there are no moving mechanisms in the player, it is based on Linux, it consumes only about 5 watts).
In the Russian Federation, the direct representative of this manufacturer is DSTOOLS.

Answer 2

I solved the problem in a different way (TVs are scattered around the city, a chain of restaurants).
I took intelNUC in the form of a "whistle". I took ordinary TVs with HDMI.
We put Linux on the NUC and autorun the VLC player with the desired link.
We put VLC on the "server" and do a "broadcast" via RTSP (at least I have it).
TVs pick up the broadcast, everything works.