Quote:
Originally Posted by old_tv_nut
In a way, the switch to NTSC was a step backwards for this closed-circuit use because the color resolution was so much poorer than the CBS system. The bulk of the three tube camera was not an advantage either.
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Curious about your statement step backward? Agreed there is the registration issue with a three tube camera. But unless the field sequential channel bandwidth was made wider, the resolution would have been noticably worse. CBS Field Sequential for a 6 MHz channel optimally would be only about 340 line to even bring the Kell Factor to 0.6. CBS was dependent upon crispening circuits to make up for the poor horizontal resolution.
On the other hand, this is a closed circuit set up which would have meant channel bandwidth would not be restricted. And the new tricolor CRTs under development by both CBS and RCA could have been used.