Most people’s TVs at this point are basically a 1080 monitor hooked up to a computer (cable box) so I don’t see this as a big challenge. If a monitor is needed they are quite inexpensive at this point compared to what they used to cost.
I have an old one with DVI and VGA, so I have a DVI-HDMI dongle and HDMI-HDMI mini cable and my first dongle didn’t work because the form factor of the monitor case didn’t allow it to fit. Quite a pain.
Of course DVI would rule out old TVs, so I don’t know what the “best” choice is, if there is one.
https://en.m.wikipedia.org/wiki/Cable_television_in_the_Unit...