https://github.com/saschaludwig/OnAirScreen
Works as of 08/18/2019 with latest Raspbian Jessie.
Make sure to have installed sudo and your user is allowed to use sudo.
Configure the raspberry pi as here: https://github.com/Chalta/Zeitgeist
Sascha Ludwig has removed the older Version of the Software, so you have to use another fork that has the old data. My fork is included in the code below. Use forked code at your own risk! Features may have been removed or added,