What happens when you connect "your PC, or other laptops" to each TV individually?
What do you mean by "my PC, or other laptops, PCs cannot see it"?
Maybe you have the HDMI out configured for a resolution that the TVs can't display.
Best I can do with so little information.
Hi! I bought a HDMI Splitter (1 input, 4 outputs). I use it for 3 TV. This setup worked this way for about 2 weeks. After, my PC, or other laptops, PCs cannot see it. I tried to connect the HDMI splitter to a TV box and somehow it works but I want to be able to use it with a PC. Can I get some help?

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