First of all, free download the best free 2160p video downloader. Install and launch it.

Step 1: Click on “Download” button icon. >> Copy and paste the 2160p video URL into the “Add URL” box and then click “Analyze”. >> Select the wanted video quality (resolution and file size) before downloading. >> Press “Download”.

Step 2: After you finish your 2160p video download task, you can directly choose an output device like your UHD TV. Open the output format list on the right and select Samsung 4K UHD TV, for example.