[ceebee23]

One reason I asked this question is I know the BBC used to kinescope most programming for sale internationally until the late 60s when they moved to 625 line PAL. Bascially whilst I am sure they could and probably did have videotape for the 405 line system it was not much use outside the UK, whereas kinescope was useable anywhere.

I assume US kinescopes were run at 30 frame ???

Maybe NBC wanted the kinescopes for non-domestic use and of course by the late 60s color film was substantially faster and cheaper than in 1953.

And o f course film does have much better archival properties than early videotape...


chris

PS: I note that the BBC only had B/W kinescopes of some of the "Dr Who" series ...they sourced color beta and VHS copies from viewers who had recorded these episodes when they were show in in the US in the late 70s. They then used the chroma info from the tapes and married it to a luminence signal generated from the kinescope and voila ...color versions of the lost episodes.