I changed these 6 Samsung TV settings to drastically improve the image quality (and why they work)
Briefly

Many consumers overlook crucial default settings on new TVs, affecting picture quality. For Samsung TVs, turning off Eco Mode and Brightness Optimization can profoundly enhance brightness and contrast, improving the overall viewing experience. Eco Mode, intended to save energy, often dims the display unnecessarily, showing negligible savings on energy bills. Likewise, Brightness Optimization can compromise color accuracy. By adjusting these settings, viewers can transform their home theater experience, especially for visually stunning content.
Turning off Eco Mode can greatly enhance your TV's brightness and contrast, improving your viewing experience and making it more visually appealing.
Disabling Brightness Optimization ensures your TV displays colors and contrast accurately, resulting in a more immersive viewing experience.
Read at ZDNET
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