https://techcrunch.com/2017/11/21/youtube-returns-to-the-amazon-echo-show/

When the Amazon Echo Show first debuted, it included a YouTube feature, as is right and proper for a device with a screen capable of playing video and connecting to the internet. But Google quickly nixed the Echo Show YouTube player, since it was a non-standard presentation of the company’s stuff which did not comply with their terms of use.

Now, YouTube is back on Echo Show (via Voicebot), and it looks a heck of a lot different. It now much more closely resembles what you’d expect to find when browsing YouTube on the web or on a tablet, and the new look is clearly intended to bring the YouTube app on Echo Show in compliance with the requirements set forth for its use by Google and YouTube.