In this thread: Problems with rendered bitrate Magix AVC/AAC MP4 MainConcept @stevecrye had a question about his ability to stream 4K60 video from Youtube using a streaming device connected to his TV.
I downloaded a 2160p version and a 1440p version of the subject video and did the following analysis with FFBitRateViewer.

Based on the peak and average bit rate of the 4K60 video offered by Youtube, my SWAG is that the streaming device has a 100Mbps ethernet connection or the wi-fi connection is unable to keep up with the bit rate of the video that Youtube sends.
