Greetings I have a very dumb question, that I wasted countless hours searching easy answers for and couldn't find, maybe I'm asking inproperly, so let me explain it here, I hope community will help me and point in right direction at least.
I'm renting apartment and I have kinda old TV with 2 HDMI ports (Sony KLV-26S550A), behind this TV i have ethernet cable coming from wall (but this is most likely will end up not getting connected anywhere, because TV doesn't have LAN port). I got Lexand LTV 300 tv tuner from my friends and this old device has HDMI and USB slots, so I'm connecting to WIFI using USB Dongle and connecting it to TV through HDMI. The culprit here - I can't use HDMI cable directly between my PC and TV, because they are too far apart and it will basically hang all over the place - I don't want that. This Lexand LTV 300 tuner doesn't support DLNA, so I cant stream over WIFI to it from my PC/Laptop/Phone. Instead I came with idea of setting up IPTV server on my home PC and broadcasting it over local network. And now comes the fun part, I wasnt able to properly google stuff on how to make it and how to do it, all I found so far is free Jellyfin media server which I installed on my windows machine, but I dont understand how to create IPTV Broadcast there (I presume its called LiveTV here) and most importantly I do not understand how and through which software should I stream my PC screen (or at least sound, because I want sound in the first place) using this IPTV technology. I digged into iptv playlists stuff and found out that it's m 3 u playlists which point to servers or folders. And here I'm stuck, because I though Jellyfin will do exactly this for me (like streaming using OBS for twitch), but instead I will end up with local IP:Port pair which I would need to forward through my router or create an actual m 3 u playlist which will point to it.
Please correct my ignorance in this question and point me in right direction - is it even possible to perform what I want? Will it work for audio? Or I'm better buying more modern hardware (TV tuner) with DLNA in it so I can stream from my PC over WIFI.
I'm super tight on budget, that's why I'm making all of this... and at the end all I wanted is to use TV as audio speaker for my pc so I can get rid of my headset and listen to music from youtube while in a room.