Growing up, I remember recording CRTs with any camera was an exercise in frustration. You would either get a black bar that goes across everything, a slowly moving 'shutter' of darkness over the screen, black frame flickering, or even a variety of bright artifacts, especially when moving the camera around.
Just setting your camera's shutter speed to match the refresh rate somewhat closely is usually enough to make it at least bearable (I start at 1/60th and see what looks least annoying).
But I recently discovered, while recording an old Macintosh Classic's CRT, that my Sony A7CII has a built-in anti-flicker feature that's... actually amazing.
