>Or take real cheap pc put tuner there and strema from it. I use Dual-core Celeron GA-C847N with quad tuner without problems
Yeah, I guess so. I've already got a media/cctv server in addition to my win10 PC. I installed Esxi 6.5 on it and split it into 2 VM's...
1) Ubuntu 18.04 with PCIE passthrough working perfectly, 1 CPU, 1024 MB, 20GB and it runs TVHeadEnd without going over 5% CPU utilisation
2) Win7 for my Plex and other stuff
Runs fine. I suppose I can stick with that.