I also tried a setup with meet.jit.si for my parents. As you did, I set up a 'permanent' room where everyone in the extended family could connect at any time. T

I also tried a setup with meet.jit.si for my parents. As you did, I set up a 'permanent' room where everyone in the extended family could connect at any time. Then I set up a Raspberry Pi connected to one HDMI port on their TV, and I used one of those Logitech cams with a built-in mic which I placed near the TV, and connected to another HDMI port on the Pi. I set up Chromium to start automatically, in kiosk mode, and to go directly to the Jitsi room. Finally I used a little relay board connected to a couple of GPIO pins on the Pi and programmed that to turn off and on the Pi. The relay board was remote controlled (infrared, worked fine). I used a small, but not too small, remote control with one single big red button. When a scheduled or agreed (maybe by a phone call) meeting was due, my father pressed the button and the TV switched to the Pi HDMI (turning on the TV if it wasn't already on), showing the Jitsi room. With maybe grandchildren and great-grandchildren, and my parents could just sit in their chairs and watch and talk via the TV. When finished my father pressed the button again, and I had programmed the Pi, as part of its shutdown sequence, to switch the TV to the other, normal HDMI port. It's possible to command the TV to switch inputs, via commands to HDMI, unfortunately it's not possible to switch to antenna input but my parents were on cable and used an HDMI port for that. So with this setup they would go from the Jitsi room to whatever they were watching before. Though the TV would be left on even if it was off before they connected - I didn't find a way to control the TV that detailed. This worked well, as far as it went, the issue I had was that it wasn't practically possible to set up a power supply for that little relay board so I used a couple of 9V batteries instead. But it turned out that the board would suck the batteries empty in no time. So, as a prototype, it worked, but I would have to make a proper power supply for that to be fully useful. After a few months my parents had to move to a care home so the project was put on a shelf.