The only thing I can think of is the Museum of Broadcasting.  I know there
is one in Manhattan, and believe there is one in Chicago as well.  There
may even be a west coast location.
 
I am sure they are on the Web.
 
David
 
David Ezell
Georgia Institute of Technology
Atlanta, Georgia
 
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Online resources for film/TV studies may be found at ScreenSite
http://www.tcf.ua.edu/screensite