Thank you for the inquiry!
If your 50" Roku HDR TV is 4K, it should have a resolution of 3840 x 2160 pixels, which is four times the resolution of a standard 1080p high-definition TV.
To confirm whether your TV is 4K, you can try the following steps:
- Check the specifications: Look for the specifications of your TV, either on the manufacturer's website or in the user manual. The specification should state the TV's resolution as 3840 x 2160 pixels.
- Check the settings: If you're unsure of the TV's resolution, you can check the display settings on your TV. Go to the TV settings and look for the display or picture options. The settings should display the TV's resolution, and if it's 4K, it should show a resolution of 3840 x 2160.
- Check the model number: You can check the model number of your TV and look it up online to confirm whether it is a 4K TV. Most 4K TVs will have "4K" or "UHD" in the model name or number.
We hope it helps!