Watch & download 4k test pattern MP4 and MP3 now. You can download free mp3 or MP4 as a separate song, or as video and download a music collection from any artist, which of course will save you a lot of time.
Wouldn't use it for colour calibration but might be just fine rough geometry calibration. There are a ton on testing clips from diversified video solution, but i think these 3 the best if you just going to manual it.
Can only be viewed correctly using a 4k hdr tv that supports hdr. One hour of the philips pm5644 test pattern. This test pattern tests the maximum brightness of your display.