Any cheap used VCR you can find will work, preferably with remote, it really does not have to play tapes, but you will be hard pressed finding ones to don't , what is important is the tuning section of it.
Just one example of many..
https://tinyurl.com/348uu9p5
It can be used to tune into what ever station needed, and output A/V to the TV, however the video will have to be boosted a bit to 5v with a simple amp like.
https://www.electronicsforu.com/elec...ideo-amplifier
which works on 5v and can be adjusted by setting the resistor networks.