Questions about General Electric PE-15 & PE-25 IO colour cameras

[NewVista]

Originally Posted by John Hafer

GE - I suspect that back in 1958, there was still little demand for color broadcast equipment, and that the PF-7A color scanner system was simply too complex and costly .

I see RCA had flying spot earlier in mid 50's [TK-25] but abandoned it for awful vidicon camera.
http://www.oldradio.com/archives/hardware/TV/RCA-TV.htm