4K HDMI cables: How to cut through the marketing lingo and figure out what you actually need

If you've just bought a new 4K TV, you might be wondering if you need to buy a new HDMI cable to go with it. The very fast answer is: Probably not. Here's how to tell if the final call is a yes or a no. An HDMI cable is just a conduit between your TV and media device, be it DVD, Blu-ray, or 4K UHD Blu-ray player; a media streamer; a video game console; or a PC. Different types of HDMI cables do exist, but their designations indicate how much data they can carry.