Many people on HN could set up bi-directional firewalls but what hope has the average person got?
Protip: when you go to buy one, don't go to consumer electronic retailers - if you find a commercial electronic wholesaler (e.g. one that sells equipment for businesses), you'll find heaps of dumb TVs that are basically giant computer monitors. Same panels, better warranty, and nothing in them except a panel and a bunch of input ports.
Businesses often use these in reception areas, operations rooms, etc.
Sad to think I'll have to pay a premium for the basic model...
https://www.amazon.com/s/ref=nb_sb_noss_2/177-4673061-841302...
Seems to be about $200 USD difference - and funnily enough the commercial version probably doesn't have HDMI-CEC.