Toshiba L5400-47 features a 47 Inch (119 cm) screen while Samsung HG50AT670UK comes with 50 Inch (126 cm), which can make a noticeable difference depending on your room size and viewing distance. Both TVs provide standard built-in audio performance suitable for regular usage, though external speakers can enhance the experience. Toshiba L5400-47 and Samsung HG50AT670UK differ in resolution (1920 x 1080 vs 4K 3840 x 2160), which can affect overall clarity and sharpness of the display. Toshiba L5400-47 and Samsung HG50AT670UK offer different motion rates (200 Hz vs 120 Hz), which can impact smoothness during fast-moving scenes like sports and gaming. If you're comparing Toshiba L5400-47 and Samsung HG50AT670UK, both models come with modern features and are designed to deliver a solid viewing experience across different use cases. From a practical standpoint, both options provide a reliable viewing experience for most users. Both TVs offer adequate brightness levels suitable for most indoor lighting conditions. Both TVs come with smart platforms that support popular streaming apps and voice control features.

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