We are now using Google Slides for Digital Signs. We attach a very inexpensive Google device called a ChromeBit to the TV and push a Google Slide to the ChromeBit using our Google Admin Console. As a person in a school responsible for the content, you simply edit the Google Slide for your building and the TV is updated automatically! Very simple to deploy and manage!!

Links to Digital Signs: 

Edison Elementary

Hillside Middle School

Kalamazoo Central High School

Linden Grove Middle School

Loy Norrix High School

Maple St Magnet

Milwood Magnet

Milwood Elementary

Phoenix High School

Prairie Ridge Elementary

Washington Writers' Academy

Washington Writers' Academy Library Trivia

Woods Lake Elementary

Woodward Elementary - Not yet production