Key Differences

Both TVs offer adequate brightness levels suitable for most indoor lighting conditions. 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. LG 20M37D and LG 19M37A differ in resolution (NA vs 1366 x 768), which can affect overall clarity and sharpness of the display. Overall, both models are capable choices in their segment, offering a balance between performance, features, and usability. LG 20M37D and LG 19M37A are two competitive smart TVs offering a mix of display performance, smart features, and overall value for different types of users. Both TVs come with smart platforms that support popular streaming apps and voice control features. Both TVs provide decent motion handling, making them suitable for everyday viewing including sports and action content. Both TVs provide standard built-in audio performance suitable for regular usage, though external speakers can enhance the experience.

Verdict: Both TVs are strong contenders, and your final choice should depend on your preference for screen size, motion performance, and smart features.