Just get any old TV and use the HDMI input and don’t connect it to the internet. The fears of it phoning home anyway even when you don’t configure wifi are overblown (almost no TVs can do this), as are the privacy implications. Nobody cares that you watch Severance and MCU movies. It’s sort of like people who tape over their laptop camera but leave the mic alone, as if 86400 photos of your face are somehow private and sensitive but all of the conversations in the room are not.