I wish to thank D.L. Bullock for submitting the Mister Rogers video.
It was truly worth viewing and saving.

I've got a question concerning the arranger shown working at the
factory.  Can anyone verify if that person was Rudi Martin?  It didn't
look like J.L. Cook.

Keeping with Q.R.S. arrangers, by any chance does anyone have knowledge
as to what TV show J. Lawrence Cook appeared on, probably in the 1950's
or early 1960's?  He talked about his career at the Q.R.S. factory.
It might have been a game or talk show.   Hoping to find out...

Randolph Herr