How to Watch 4K60 Videos on YouTube

This is how to play 4K60 videos on YouTube. I uploaded several 4K60 videos to YouTube but when I attempted to watch them after uploading, YouTube said 1080 60FPS, even though the videos were uploaded as 4K 60FPS. This is the fix that I found for watching 4K60 videos on YouTube. Enjoy and share! #4K60