do I have a small chance to get this in the near future
You will have to connect to that tuner via an IP so that Plex can send commands to it (to change the channel, and record the show). 99.99% chance the company that provides that tuner won’t let Plex (or anything else really) get access to their system.
I used to have DirecTV, and had to switch to Comcast (with a CableCard and a HDHomeRun Prime box) to make it work.
It should be possible with the right hardware. First, you need a satellite STB/tuner that has a non-encrypted video output (e.g. S-video output port, or Composite.) Then, you need a proper/supported recorder/DVR (e.g. Hauppauge.) The proper Hauppauge can be controlled by Plex Media Server.
There are other ways to do this, too. (e.g. the right HDMI splitter will defeat the HDMI-based copy protection.)
Good luck!
You can put this card in a linux system and setup tvheadend/tvhproxy or minisatip and you are able to use this tuner card in Plex.
Thanks to Plexip for an answer that could work, but, I am a just an average Joe that have no clue how to use Linux, so the only thing I was really asking was is there any chance for Plex support for my tuner card TBS6910
https://www.tbsiptv.com/index.php?route=product/download/drivers&path=3&id=17
