How to split one video signal into several receivers?

Question

Iron

Hello,
There was a need to make something like a "video wall". One video signal must be shared between 6-8 monitors (TVs, monitors, etc.).
It should turn out something like this:

I saw an HDMI splitter for sale, but, judging by the description, this thing simply repeats one input signal to N outputs.
Actually a question in a subject.
Thank you.

Answer 1

www.youtube.com/watch?v=greR03C2RIY
www.3dnews.ru/news/8_monitorov_s_odnoi_videokartoi...