Are they any self hosted dvr programs? I have a cable set-top box that I would like to record programs while I’m away. Yes I can pay to enable the dvr functionality from my cable provider but I’m cheap and would like my shows available to any computer in the house and not just the one hooked up to set-top device. Do I need specific hardware like a TV tuner card to integrate into my pc? All I see is all in one systems being sold for OTA channels of which I have none available where I am. Would be a bonus if it worked with jellyfin. Is anybody still doing this stuff or has everyone just moved on to the arr stack?
Yes, you will need a tuner card or USB tuner. The go to apps are mythtv and Kodi. I’d start with Kodi and see if that does the job for you. If you check the Kodi wiki you’ll find resources on what specific tuner cards work best.
Self hosted DVRs are definitely a dying breed, but there’s stuff out there if you’re willing to dig.
For Jellyfin integration, once you have the files you should be able to dump them out to a folder where Jellyfin can scan them.