Regarding this post:
Incandescent bulbs minimize flicker because of their inefficient design. The filament continues to glow when the current cycles off.
Similarly many audiophiles prefer tube amplifiers and say that they bring digital media to life. Tubes are slower than transistors and may naturally “connect” the individual digital snap-shots.
Perhaps the same is true for the old TV screen. It is slower than a modern LCD screens and therefore minimizes the flicker.