Sceptre makes 4K dumb TVs (Walmart). You can also find other brand 4K dumb TVs on Amazon. A guest might not see it plugged in and not know to try all the HDMI

Sceptre makes 4K dumb TVs (Walmart). You can also find other brand 4K dumb TVs on Amazon. A guest might not see it plugged in and not know to try all the HDMI inputs before selecting the easy, built-in option on the TV.