HD videos, but the video will be downscaled to fit the resolution of the TV. The video will not be displayed in true 4K quality. To play 4K videos on a 1080p TV, a 4K video player is required. The video player will resize the video to fit the resolution of the TV, but it will not be displayed in true 4K quality. To play 4K videos in true 4K quality, a 4K TV is required.
Also worth reading: How to implement ComfyUI optical flow video upscaling for 4K resolution? · What is the best free AI video upscaler software to convert low-resolution footage to 4K? · What are the most effective AI video restoration techniques in 2026 for achieving pristine 4K resolution?