CBS News has assembled a bunch of clips of their coverage in 1963.
http://www.cbsnews.com/news/jfk-assa...allas-unfolds/
The clip of "shocked reaction of people on the street" shot in Chicago, appears to have been originally recoded on videotape and not 16 mm film.
I was three years old, living in Chicago. I complained to my mother that Bozo's Circus was not on because the president had been shot. I'll never forget the look on her face.