It would be a shame if I had to have my own HDMI generator go back to switching inputs.

Instructions given from the twitter thread but are probably slop:

Samsung:

Menu → Settings → All Settings → General & Privacy → Terms & Privacy → Turn off "Viewing Information Services"

LG:

Settings → General → System → Additional Settings → Turn off "Live Plus"

Settings → Support → Privacy & Terms → User Agreements → Turn off "Viewing Information"

Roku TVs (TCL, Hisense, Philips, Insignia, Onn, Sharp, and others):

Settings → Privacy → Smart TV Experience → Turn off "Use Info from TV Inputs"

Settings → Privacy → Advertising → Turn off "Personalize Ads"

Sony:

Settings → All Settings → Turn off "Samba Interactive TV"

Vizio:

Settings → All Settings → Admin & Privacy → Turn off "Viewing Data"

Amazon:

Settings → Preferences → Privacy Settings → Turn off "Device Usage Data", "Collect App and Over-the-Air Usage", "Interest-Based Ads"

Though at some point they'll just start using random MAC addresses Then you have to ensure that you block all external access for stuff that didn't get an IP from your DHCP server. Which probably won't work with IPv6 because it could just assign itself an IP and go.

How would you block a random device on IPv6 that's generating its own IP?

https://news.ycombinator.com/item?id=46294456

https://www.ucl.ac.uk/news/2024/nov/smart-tv-tracking-raises...

https://arxiv.org/abs/2409.06203