It's 2019 and Apple STILL doesn't support YouTube 4K playback in Safari, here's the fix - EOSHD.com - Filmmaking Gear and Camera Reviews
Apple TV YouTube App Rolling Out 4K Support - MacRumors
:no_upscale()/cdn.vox-cdn.com/uploads/chorus_asset/file/20047519/Screen_Shot_2020_06_22_at_4.20.21_PM.png "Apple TV 4K will at last play YouTube in 4K with tvOS 14 update - The Verge")
Apple TV 4K will at last play YouTube in 4K with tvOS 14 update - The Verge
4K YouTube iPhone Videos: How to watch with iOS 14 - 9to5Mac
How to watch 4K YouTube videos on iPhone, iPad, and Apple TV - iGeeksBlog
YouTube 4K arrives on Apple TV – here's how to get it
The Apple TV is getting 4K YouTube, and Macs are getting 4K HDR Netflix | Ars Technica
YouTube on the Apple TV is still missing 4K playback on tvOS 14 | iMore
4K YouTube iPhone Videos: How to watch with iOS 14 - 9to5Mac
Apple TV now plays YouTube videos in 4K, with limits | Engadget
Apple TV finally upgrades for YouTube 4K
Apple TV 4K with HDR video support revealed at Apple event (CNET News) - YouTube
YouTube TV Live 4K streaming on Apple TV 4K only works on 2021 model
Apple TV 4K (2021) can play 4K 60FPS YouTube content | iMore
YouTube supports high frame rate 4K HDR playback on new Apple TV 4K
Apple TV gets YouTube playback in 4K with tvOS 14 | AppleInsider
iOS 14 Brings 4K YouTube Video Streaming Support to iPhone and iPad
/cdn.vox-cdn.com/uploads/chorus_image/image/68767427/appletv.0.jpg "YouTube ends support for old 2012 Apple TV, but you can still use AirPlay - The Verge")
YouTube ends support for old 2012 Apple TV, but you can still use AirPlay - The Verge
Apple TV 4K: What Happened to YouTube In 4K? - The TV Answer Man!
/cdn.vox-cdn.com/uploads/chorus_image/image/66967574/cwelch_200205_3895_0001.0.jpg "Apple TV 4K will at last play YouTube in 4K with tvOS 14 update - The Verge")
Apple TV 4K will at last play YouTube in 4K with tvOS 14 update - The Verge
Apple TV gains 4K YouTube video playback, but HDR and 60 fps still missing - 9to5Mac
New Apple TV 4K supports high frame rate HDR in YouTube app | AppleInsider
4K YouTube Playback Support On Apple TV 4K Finally Begins Rolling Out | Redmond Pie
YouTube Has Begun Gradually Rolling Out 4K Support for the Apple TV
/cdn.vox-cdn.com/uploads/chorus_asset/file/9574213/akrales_170919_1976_0018.jpg "YouTube 4K has come to Apple TV, but we're waiting on HDR, 60fps, and iPhone/iPad playback - The Verge")