This article from July 1951 shows photos made by amateurs at the National Photographic show in February of a closed-circuit demo of CBS color. This article has been published elsewhere on the web, but with poorly-descreened images.
The pictures, which are some of the few successful ones, were made on Kodachrome Type A (tungsten color balance), which surprised me, as I would have expected the color balance to be closer to daylight. The article goes on to recommend type A film for this exercise. It's not stated how much color correction was applied for the magazine article.
http://www.bretl.com/tvarticles/docu...51CBScolor.pdf