This isn’t the first time that you could watch vertically-oriented short-form videos on the big screen — TikTok apps can already be used on Google TV and Android TV, as well as some Samsung smart TVs. But now that TikTok enables creators to upload videos up to three minutes long, it might feel more natural to opt for big screen-viewing than it would if you were only watching 15-second videos, for instance.
Like TikTok’s update to support longer videos this summer, making its app accessible on TVs is yet another show of competition with YouTube, which created YouTube Shorts as a TikTok competitor earlier this year.
https://techcrunch.com/2021/11/01/tiktok-is-coming-to-amazon-fire-tv-in-the-u-s-and-canada/