Pre-LED stadium lights do indeed flicker pretty egregiously, but, when correctly installed, they would be balanced between all three phases, so at least the ave

Pre-LED stadium lights do indeed flicker pretty egregiously, but, when correctly installed, they would be balanced between all three phases, so at least the average illumination was roughly constant. I don’t know why TVs weren’t headache-inducing. Certainly old CRT computer screens were extremely unpleasant to look at at lower refresh rates.