You won’t find OLED or QLED in sizes below 42 or 43 inches, but here are the kinds you will find: LED TVs: These are the most common type of 40-inch TVs available in the market. LED TVs use LED ...

Not only is the Sony XR-42A90K the smallest OLED TV in Sony’s line-up, at 42-inches, it’s the joint-smallest OLED TV (as opposed to ‘monitor’) you can currently buy (LG's C2 is the other ...