Do you need to buy New HDMI 2.0a cables for 4K & HDR TVs?????

Hi, this video tests various HDMI leads for compatibility with 4K and HDR televisions. It tries to answer the question of whether you need to buy a new HDMI 2.0a cable when you upgrade to a 4K television.
In the video the setup used is a Xbox One S console and a Samsung UHD (4K) TV (model no: UE40KU6000K). Both 4K and HDR have been enabled.
HDMI cables ranging from 8 year old cables to new cables and also £1 shop cheap cables are tested.
Many thanks Vince

Видео Do you need to buy New HDMI 2.0a cables for 4K & HDR TVs????? канала My Mate VINCE