Mark your calendars for next Wednesday night when PBS will show the  
"Sound" episode of the series "How We Got To Now with Stephen Johnson".   It will 
include a 5-minute+ section on Leon Scott and the Phonautograph  including 
an interview with collector David Giovanonni.
 
Also, on Friday night PBS will air a one-hour documentary titled  
"Hitmakers". While it is mostly concerned with how rock and pop artists  distribute 
their music these days, at the 35 minute mark (approx), you will  hear George 
W. Johnson's "Laughing Song" (with photo of GWJ) and Edison is  discussed 
for about a minute or two.
 
I just wanted to provide a heads up.
 
Steve