The data displayed on TV slide content matches the data access level of the owner of the TV.
For example, if the TV owner is a Manager, who's data access is limited to the team(s) they manage, the content available to add on the TV will be limited to content relevant to those teams. Find out more about data access ➡️ here.
How do I resolve this?
If you have users that need to view TVs on their own devices/locally, add them to a team that will give them the same data access as the TV's owner.