So I was digging through a tag sale and found an old video game console called the Magnavox Odyssey Squared.
After cleaning it up a bit, I tried to see if it would work. To do so, I had to find a TV old enough for it to handle.
And it worked. So now I'm spending my summer playing video games from 1978, armed with only a joystick and a single button on the controller.
https://archive.org/serve/Armored_Encounter_Sub_Chase_1980_Philips_EU_US/Armored_Encounter__Sub_Chase_1980_Philips_EU_US_screenshot.png