- Search for Test Pattern on Netflix.
- Let the test you want the results of run, and the results will be in the upper right corner though it takes awhile to stabilize. It has a test for everything. There are a few to test 4k capability.
- Also, the 4k banner should appear when it plays 4k content and only the highest priced plan has it though currently there aren’t many shows in 4k.
- Also be sure to enable HDR on your TV. I know I’m watching 4k when it switches to the HDR mode on my LG.