Hi, I'm about to install a Samsung 4K HDR TV and connect Apple 4K to it. I'm confused as to whether I now need to buy additional HDMI cables as some posts I've read suggest most existing leads are sufficient. My current leads comprise Cambridge Audio and Amazon Basics. Both leads state that they are "High Speed HDMI Cable With Ethernet". The Cambridge Audio lead is significantly thicker with a more quality feel to it. Will these carry 4K HDR or do I need a specific type of lead? Thanks for your help.