You can broadcast a Microsoft Teams Live on your digital signs with OptiSigns.
Sign in to Office 365 using your credentials.
Go to Teams:
Click on Calendar:
Under New meeting, select Live event (It is better to download Microsoft Teams Desktop app for running the live event):
Give the event a name and location, then click Next:
Make sure to set it as public, no login is required:
Click Schedule, then 'Get attendee link' to copy attendee URL:
Log in to OptiSigns:
Click Files/Assets -> Apps -> and select Microsoft Teams Live:
Give your MS Teams Live app a name and paste the copied attendee URL in there:
For not Public Live event (Sign-in required):
You can set Username and Password in Advanced section:
Now you can assign this MS Teams Live app to your screens, or put it on a schedule so the screens will join automatically when the event start.
Have the host start the event a few mins before screens are joining automatically.
It will take a device 10-15s to join the event, so it's not a good idea to put the MS Teams Live in a playlist. It's better to use it as single asset to take up full screen or be part of a SplitScreen zone.