I'm building a house extension next year and have been advised to lay in as much cat 5 cable as possible. I want to network my PC's , and run a sonos system..I have seen the cat8 systems where I can also distribute my TV signal & have got the impression you guys are not too impressed by it. Can cat 5 distribute UHF signals?

Any suggestions on what I should be looking into doing would be most gratefully recieved