Unfortunately, Nintendo decided not to include a video player with the Switch so if you want to watch any video on it, you’d better hope it’s available on YouTube (or the few other services like Hulu/Nico Nico that have an app for the Switch). However, that problem is being fixed by work from the homebrew scene so that you could watch anything on your Switch.
First, we got PlayerNX (without audio) and now, a video player has been integrated into NX-Shell’s code by its developer, Joel16.
Currently, the video player is at the following state: https://github.com/joel16/NX-Shell/b...s/NX-Shell.nro

via http://wololo.net/2018/12/11/switch-...6-2-0-support/