Re: I don't understand why people are running ad-signs on Windows
Where I work we have a screen showing a slideshow on a screen in our reception area.
The slideshow started life as a Powerpoint, 1920x1080 screengrabs were taken and the resulting PNGs loaded on to an old 256MB Raspberry Pi 1 running Kodi (and vampiring its power off the TV's USB port). An autoexec.py script ensures the slideshow starts automatically on system startup.
To make life easier for those who have to update it, the content is supplied on a USB memory stick (VFAT), as if they tried to update the SD card they'd be met with a warning that the card isn't formatted (and would likely nuke the setup).
It works. It has never crashed. It uses far less power than a dedicated PC sitting there just scrolling through a powerpoint file.