THE CIMPLE CO - RF Modulator for TV - RCA Composite to RF Coaxial Adapter with A/V Cable - Converts Standard Definition Signals to Coax - Watch DVD, VHS, Game Consoles on TV - Does Not Work in Reverse

This is actually fairly easy if you have the right adapters. There is an External Antenna port on the back there. I think it is a 3.5mm size and should be two terminals, so a mono headphone jack should work. Then connect that to a coax adapter like this one. I think something like this would work as well but I'm not sure. Once you have a coax connection, get an RM modulator like this. This will convert RCA Composite inputs, into a coax. You select if you want it to be sent on Channel 3 or Channel 4. Then set the TV station to that same channel and you should see your video. I remember doing something like this to play N64 on black and white TV.

You'll need a modulator for this task. https://www.amazon.com/CIMPLE-CO-Composite-Converter-Modulator/dp/B06XC9Y3VB It will need power because it will be processing the signal in real time. The modulator above will give you a standard RCA composite input to connect to. If you need to connect HDMI to it, you can get something like this: https://www.amazon.com/Modulator-Adapter-Converter-Antenna-Chromecast/dp/B0CLG5YXQY