>>715017158something else to say is that progressive is still full frame rate. ntsc standard, interlaced. resolution. all work intended in CRT. 60fps at half vertical resolution.
when things like these are translated to digital they are turned into shit because most interlaced content is displayed at half res, half framerate. "all TVs do is discard 1 field entirely and then stretch the image. that's why looks blurier, it discarded half of the image.
interlaced content on CRT is not blury. all it does it seem to blink more. the sharpness is retained.
the easiest way to notice this is when something flicker on screen to produce transparency. most of the time you get 1 (transparent field or visible field)