Off screen 1949 CBS colour wheel TV film footage

[Aussie Bloke]

G'day all.

I've been browsing the Critical Past site lately and have found on there a 3 minute film showing early off screen colour filming of an experimental CBS colour wheel TV in action displaying a lady showing colourful pieces of cloth http://www.criticalpast.com/video/65...n-Monitor-Tube . In the past I have seen a 10 second snippet of this footage, but now it is great to see the film in its entirety, 3 minutes worth!!! The colours however look to be of the two colour gamut made of I guess orange and aqua or cyan, I wonder was this demonstration a 2 colour wheel television or a 3 colour wheel television but the film losing some of it's colour with age?