There is a difference in screen size (20 Inch (50.80 cm) vs 19 Inch (48.26 cm)), and a larger screen generally provides a more immersive viewing experience. Both TVs provide decent motion handling, making them suitable for everyday viewing including sports and action content. Both TVs come with smart platforms that support popular streaming apps and voice control features. If you're comparing LG 20M37D and LG 19M37A, both models come with modern features and are designed to deliver a solid viewing experience across different use cases. Both TVs offer adequate brightness levels suitable for most indoor lighting conditions. In general, both TVs cater to modern entertainment needs, including streaming, gaming, and everyday viewing. LG 20M37D and LG 19M37A differ in resolution (NA vs 1366 x 768), which can affect overall clarity and sharpness of the display. Both TVs provide standard built-in audio performance suitable for regular usage, though external speakers can enhance the experience.

Verdict: Both models offer good value, and the better option depends on your specific requirements and viewing preferences.