Fast Video Cataloger is a cheap prosumer cross-platform app that does exactly what you are looking for, but It's not exactly designed specifically for professional videography, so it probably doesn't handle raw formats for example. You can drag clips from your catalog into your editor though. Source: over 2 years ago

I posted this yesterday on the tvheadend.org board, but it's silent so far. I thought I'd try here:. Source: about 1 year ago

Fwiw, Xbox One Digital TV Tuners and some RTL-SDRs (with an extra decoder chip) are able to pick up DVB-T2 and are usually £10~20 on eBay. https://tvheadend.org/ can be useful for interfacing with the tuners over USB and exposing web streams. - Source: Hacker News / over 1 year ago

If your USB tuner works with Linux, you can use it with TVHeadend, and connect it to Jellyfin via the official plugin. I use it here and it works fairly well. Source: over 1 year ago

They're expensive for what they are, though. If you're techy minded you can make your own using something like a Raspberry Pi, some USB TV tuners and TVHeadend. Source: over 1 year ago

TVheadend (or the convenient linuxserver docker container). Source: over 1 year ago