Digital Signage — manage media and TVs from one place
Getting started
On the TV or device you want to use as a screen, open /display in its browser.
It'll show a short pairing code on screen.
Log in to Control below, open the Screens tab, enter the code, give it a name and a playlist.
Add media (images, text, or another app's display as a web page) and build playlists in the other tabs, then assign them to whichever screens should show them.