I had one that had the same form factor as a gameboy. It was black, the screen had a resolution so tiny you could not really make anything out, and it was almost impossible to get a stable signal. But I loved it when I was 12 years old, because I was only allowed to watch tv for an hour every day, and nobody knew I had that tiny TV which I bought from the money I made delivering flowers. I still have it in a box somewhere.