Planning a permanent LAN setup

[username455]

Hello everybody, I wanted some advice/solutions for a lan setup.

We currently have 4 computers up and running, but I wanted some ideas to make the setup even sweeter. I was thinking about putting a TV up in the room and somehow broadcasting the PCs to the TV so others could watch the action. Ideally I would like to have all 4 pcs able to broadcast to the TV (not all at once, just the ability to). If I was going to have just one PC able to show on the TV I could just run an HDMI cable to it, but was hoping for something a little more. Is there anything that can allow me to do that?

Also, are there any other suggestions/additions to make a solid lan setup? It doesn't have to be absolutely necessary haha. Also I don't have a budget in mind yet because I am unaware of the costs of these things. Just the planning stage at the moment

[Enderman]

Use a HDMI switch to connect all the PCs to the one tv, then duplicate all your PCs to that HDMI cable.

This way you can switch between the screen of each PC on the tv.