->  TW> As a review NTSC was affectionatly called "Never The
Same Color"
->  TW> becasue the way colors drifted. That was mostly due to poor control
->  TW> by the Broadcast Engineer but part of that was equipment limitations.
->  TW> Most of the Prolbems has been solved by improved equipment in the
->  TW> interveining years.

->  The standard for the two color signals is 1.5MHz for the
->  I signal and 0.5 MHz for the Q signal.  TV sets up to
->  about 1964 demodulated on those two 90ø signals.  The
->  I and Q signals then underwent further processing to
->  come up with R-Y, B-Y and G-Y signal for the pic tube.

->  Eventually manufacturers learned to demodulate on the
->  R-Y axis and the B-Y axis (both 0.5 MHz) and combine
->  them in such a fashion to get a G-Y signal.

->  Note that now the viewer has 1 MHz less color signal
->  or information (quality, if you want to call it that).

So it was a trade off then. That make PAL even more Impressive. I spoend
7 months, as a guest of the United States Navy, in Scotland. When I
first arrives I was totaly Blown away at the Quality of the PAL picture
as compaired to NTSC
 Of course if we had have went with the CBS system we would have had to
purest Color as it used Pure Photograpg Quality filters for the Color.
And Ironicly a version of the CBS system in used in the Table Top Video
Projectors. Those using the Color LCD's are a lagging second place
with washed out colorsw compaired the ones using the Texas Instruments
DLP system that uses the same Pure Photo Quality Filters to mix the
colors.                           
 And they are Now producing Large Screen rear projection TV's using the
T.I. DLP chips.
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