Rather than arguing with me, you could have just explained how they would play the files on their TV.
Doesn't take hours with Plex and you don't need all of the features.
The “Free to Use” Parts: The Server and Apps
There are some details to get into, but the summary of “free” is simple:
The video/music/photo media you own is yours. Of course, we don’t charge you in any way for that.
The Plex Media Server is free to use.
Our 'Movies & Shows' streaming service is free to all users and ad-supported.
Free TV streaming is available from our ad-supported Live TV on Plex service
Connect a compatible tuner and antenna to your server to let you watch over-the-air broadcasts available at your location live. (Recording of broadcasts requires a Plex Pass subscription.)
All of our non-mobile, public apps are free (with the exception of Plex Labs apps). These include Amazon Fire TV, Android TV, Apple TV, Chromecast, Plex HTPC, Roku, Smart TVs, Windows & macOS computers and game consoles (PlayStation and Xbox).
Even if it did take a while to set up(it doesn't), once it's done, it's done.
Now please explain the procedure with CX.