When HDMI 2.0 hit the scene in 2013, the standard broke new ground for 4K UHD and made features like HDMI ARC mainstream. But HDMI 2.1 would enter the arena only four years later, with a major increase in bandwidth – 48Gbps, compared to 2.0 18Gbps – being one of the main selling points. The more ones and zeroes traveling back and forth between your source devices and TV or projector, the better the picture and sound quality you can get. Now, what if you own an older TV that only has HDMI 2.0...
