Some "French Chef" puzzles

[Garrett Wollman]

WGBH is currently rerunning Julia Child's "The French Chef" during
their Saturday cooking-show block.  Does anyone here know the answers
to these questions:

1) The electronic program guide lists a 2000 production date for these
episodes.  What does Tribune think was done then?  The original
episodes are from the early 1970s (older than dirt in TV terms -- or
at least older than I am!).

2) Why does PBS have this bizarre policy that the network
identification is part of the program?  It's quite odd to hear a sound
that was last current in the early 1980s again; commercial networks
always keep their graphic identity separate from the programming, so
they can change it at will.

3) I think the colors in these episodes look pretty saturated.  Are
they real?

4) The show includes very few wide shots, but when they are used,
there is some fairly noticeable vignetting (which would probably have
been lost in the CRT's overscan in 1972).  Medium shots fill the
frame.  Design flaw in the cameras?  (What sort of cameras would they
have been using originally to shoot the show?  Kevin?)

-GAWollman