What are these wires for?

[Daniel_487]

So I have recently moved house and in every room there are these wires. Does any body know what these are used for and whether or not they are useful? It's an absolute mess.
https://imgur.com/a/oK4sl8t

 

[USAFRet]

So I have recently moved house and in every room there are these wires. Does any body know what these are used for and whether or not they are useful? It's an absolute mess.
https://imgur.com/a/oK4sl8t

coax, generally for TV.