Sony's new Master Series A9F and Z9F TVs with HDMI eARC and Netflix video optimization, have a starting price of $4,500.

The new Kordz PRS3 AOC HDMI cable supports UltraHD 4K, HDR and high-frame rates to work with the latest video technologies.

One of the first Amazon Alexa-controlled projectors, the Optoma UHD51A has a TI chipset to deliver 4K home theater images at $1,699.