I bought a Panasonic TV because it was said to have the best UI. It used Firefox OS. The UI was OK - I have nothing to compare it to since I didn't have a TV fo

I bought a Panasonic TV because it was said to have the best UI. It used Firefox OS. The UI was OK - I have nothing to compare it to since I didn't have a TV for 10 years. Anyway, they stopped Firefox OS development soon after. I wonder if I can install another OS?