This morning there was a short BFI B&W kids film on (The Christmas Tree), from 1966, with kids involved in journey taking a Christmas tree to London. Rather oddly and despite it being a B&W film, the tree's foliage showed up quite faintly as green. None of the grass, nor the other trees showed as even slightly green. All rather puzzling, but I remember a TV experiment from way back, where they tested B&W TV's to hint at showing some colour. Anyone remember it?
I like watching some of these older low budget films, for the quiet roads and vehicles from the early days of my motoring career.