Yeah, this is the answer. My wife does a lot of arduino/pi stuff so this is on our to-do list, but we just can’t find the time (building in cushion for inevitable network and setup troubleshooting).
2 points
You can spin the pinhole up in a docker image and have it run as a secondary DNS server. The rest of your network can use the existing DNS and only point the TV at the pi. If you sit down to watch something and it requires tweaking, just flick back to regular DNS :)