Because it will let you down and make your job so much harder. Really.
Most TVs with a USB port allow you to load some media files on a USB drive and then you select to play them back sequentially. That’s it.
If the TV turns off, you will have to restart the playback. Some TVs show annoying progress indicators on screen. Others, stop when the full list of media is completed. Generally, it is a nice free way to do stuff, but it isn’t suitable for businesses and organizations.
FuneralScreen automates the process of playback. It can turn the TV on and off, change the channel to the proper HDMI input and make sure everything goes smoothly without glitches even after a power failure. And, of course, you can continuously update the content over the Internet without using USB sticks or DVD discs, and do so to 1 or 10,000 screens. Also, FuneralScreen provides a scheduling feature. You can setup your monitors to show different things at different hours of the day, or even power off your monitor to save electricity.
And all of that without even touching upon how FuneralScreen can composite screens with multiple content, using YouTube videos, PPTs, live streaming videos, etc.