What I remember about the coverage is it was unlike anything that ever came before. Remember, there were no communication satellites, no internet, and the communication networks were little more thant phone lines and radio signal relay towers. The whole communications grid was being stretched to its very limits by the event. The grainy, low contrast images you see today are little better than what we saw at the time. There really was no such thing as 'high definition' in TV broadcasting in those days and videotape was still pretty much in its infancy. Some of the images you see now were actually recorded using a system known as Kinescope:
http://en.wikipedia.org/wiki/Kinescope
I remember, no matter where you went those four days, every Tv set and radio was tuned to the events surrounding the assassination. I also remember there was 24 hour coverage, a rarity then since almost all stations would sign off about midnight or 1:00 am until about 5:00 or 6:00 am (I used to enjoy one station signoff in San Francisco; before the National Anthem, they would show a film piece from one of the branches of the Armed Service, e.g., "The Marine Hymn", "The Navy Hymn", etc.).
Some of the newscasters, like Walter Cronkite, spent very long shifts on air and cemented their place in broadcasting history. All in all, it really was the first time the full potential of TV technology, as it was at the time, was fully realized...
As a bit of a footnote and to put the JFK coverage into persoective, it wasn't until 4 years later, in 1967, that the first worldwide satellite broadcast was officially presented:
http://en.wikipedia.org/wiki/Our_World_(TV_special
Prior to then, transmission overseas was limited to radio-based signals or transatlantic cables. A lot of news footage was shot on film and transported to the nearest TV station where it was developed, edited and prepared for broadcast. During the Vietnam War, in order to avoid military censorship, news footage taken in the war zones was sent over land in a sort of smuggling operation to countries adjacent to Vietnam and then flown to the US for processing and broadcast...
(Damn I'm suddenly feeling very old...)
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