Both TVs offer adequate brightness levels suitable for most indoor lighting conditions. If you're comparing Panasonic TH-65GX500DX and LG 65NANO776RA, both models come with modern features and are designed to deliver a solid viewing experience across different use cases. Both TVs provide standard built-in audio performance suitable for regular usage, though external speakers can enhance the experience. Both TVs come with smart platforms that support popular streaming apps and voice control features. From a practical standpoint, both options provide a reliable viewing experience for most users. Both TVs come in similar screen sizes, making them suitable for comparable viewing setups and room environments. Both TVs provide decent motion handling, making them suitable for everyday viewing including sports and action content. Both models support 4K 3840 x 2160 resolution, ensuring sharp picture quality with detailed visuals for movies, shows, and gaming.

Verdict: Choosing between Panasonic TH-65GX500DX and LG 65NANO776RA depends on your usage, whether you prioritize display quality, smoother motion, or smart features.