You can tell if the content is available by going to a show (preferably a Netflix original) and looking under the title.
It should say “Ultra HD 4K” and not “HD”.
Ensure your 4K device is plugged into a HDCP 2.2 compliant HDMI port and not the nonsense ones some TV makers add around the sides.
What 4k does Netflix have?
If your device supports Netflix Ultra HD streaming and you have a plan that offers it, you can search Netflix for the terms “4K” or “UltraHD” to find titles available in Ultra HD. If you’re browsing for titles, you can also look for an Ultra HD icon to find Ultra HD shows and movies.
How do I check my Netflix resolution?
Press Ctrl+Alt+Shift+S while watching to see the available bitrates. If you’re seeing a maximum of 3,000 or less then you’re stuck on 720p. To specify the video quality to use, choose a bitrate and click Override. Hitting Ctrl+Alt+Shift+D will show the actual current resolution up on screen.
How do I know if my TV is 4k?
Just go to display settings and check the maximum resolution. If it is 1080p then it is full HD and if it is 2160p, then it is 4K. Your TV is not 4K.
Photo in the article by “Flickr”