[mythtvnz] 50Hz vs 60Hz refresh rate

[Brett]

> experience, with 75-85Hz having significant success in tricking our 
> brains into perceiving better image quality.  Come along LCD's and 60Hz 
> is suddenly fine.  (And we have a raft of new measurement dimensions to 
> compare problems that did not need to be measured as they were not an 
> issue in earlier technologies - speed, blacks, whites, viewing angles etc)
> 
> Yet 50Hz freeview is seen to be very good.  Go figure.  I think the 
> explanation is that the video images are generally moving, compared with 
> static flashing images, and also the underlying technologies, with CRT 
> screens being much faster gave them the ability to show the flashes much 
Remember that your old analogue TV most likely displayed NTSC material
at 60Hz (interlaced).
My old CRT displays std. video PAL at 1250i50 or 576p50 & NTSC at
1080i60 or 480p60  (these are overscanning resolutions)