Well, one of you posted this on Facebook:
It’s a YOLOLIV YoloBox Pro,All-in-one Portable Multi-Cam Live Streaming Studio Encoder Recorder Switcher which has 3 HDMI inputs, 1 USB input, 1 Full Featured USBC input, plus local SD card video sources and PDF source from SD card, 1 Mic in, 1 Line in, 1 HDMI out, 1 Audio out.
Meh. I can’t use it unless it has a couple coax inputs, a couple composite inputs, and a set of VHF antenna screws or two.
But I don’t have $1300 lying around, and my sixteen year old projector television would burst into flames if I tried to hook this up, so I guess I’ll have to continue to scout obsolete tech at garage sales.