What does testing some other brand have to do with anything? If I put 5 of the exact same TV’s next to each other and they all look different, they are objectiv

What does testing some other brand have to do with anything? If I put 5 of the exact same TV’s next to each other and they all look different, they are objectively bad quality. Maybe someone else makes something better or worse, but the ones in front of me are still bad. I literally had all these screens next to each other displaying the same image. It was not possible to adjust them so they all looked the same. The lighting inside the screens wasn’t even consistent. They had different hotspots.