Ancable 1-Pack Gold Plated - 75 Ohm to 300 Ohm Adapter - UHF/VHF/FM Balun Transformer - Antenna Transformer Converter Adapters with F Female Jack for TV, Radio, Coax Antenna

Yes there is an adapter for connecting a VCR coaxial cable and the 2 vhf antenna wire posts screws on the back of the tv.Here it is - https://a.co/d/03pZ0tgG Once connected, turn the tv to channel 3, possibly 4 depending on your VCR to see the iVCR signal.

You need something like this. Then hook whatever you want up through the coax on the adapter.

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.