It&#x27;s interesting how often people make this mistake.<p>The NES, like virtually all home computing hardware of the 70s and 80s, operates at 60 hz progressive scan of 200 lines, give or take a few.  That is, of course, the same bandwidth of the 525 interlaced lines of broadcast video.<p>In those days, the horizontal and vertical resolution was bound by RAM capacity rather than pure video signal bandwidth.<p>In either case, the screen is updated at 60 hz.