David Katzmaier is a CNET Senior Editor and TV reviewer, something he’s been doing for most of his career. He started at a small review website in New York and, later, a friend went to CNET and brought David on board where he’s been since about 2000. David is an expert on TV technology, and so we delved into the Retina effect, generic High Dynamic Range (HDR), Dolby Vision, 10-bit color, TV brightness levels, color gamuts, Hybrid Log Gamma, edge lighting (with light guides) vs. local dimming, the pros and cons of OLED vs. LCD, H.265 compression, 120 Hz refresh sample and hold, 4K streaming standards and the best time of year to buy a new TV. Phew! If you’re into UHD/TV tech, you’ll love this grand tour of today’s state-of the-art.