Mid to high end hdmi cables (like these Audioquest Chocolates) are absolutely essential, if you have invested in a good LED or 4K set. I'm using them now on an 8- year old Samsung 46" flatscreen ( can't even remember anymore what they were called ( not an Led, but what?) but it cost $2400 from Crutchfield 8 years ago and looks/sounds better now with the chocolates. I also have them for a Samsung 42" LED and our Apple TV box. Will be buying a 4K ultra (either Samsung or Sony) very soon, and will buy even higher grade Audioquest cables. They give an incredible pic & sound. Thank you!
Pros: Great picture (richer, clearer, more detailed, in two word, eye opening)
Beautifully improved audio without having to hook up set to Bose sound system ( we used one, heard no appreciable difference from the tv's built/ in speakers, then puppy chewed through Bose wires,) , so an HDMI cable that handles this is more than welcome
Cons: None. Sure they're a lot more expensive than the Monster cables I originally bought, thinking I really knew what I was doing, but pay the price, get these home, hook them up, you'll agree they're well worth foregoing something else discretionary. Thank you reading my review.