American Top 40 in the Boston market

Matthew Osborne
Fri Mar 5 14:37:32 EST 2021

 Distribution of the show was changed from vinyl to CD in 1990.  I am trying to find the exact date but having trouble - I've seen copies of letters sent by ABC to the affiliates announcing the change with the exact date.  I also believe that, after the formal conversion date a limited number of copies were still sent on vinyl for a few months afterward.

Matthew Osborne 
West Sand Lake, NY

    On Thursday, March 4, 2021, 4:36:53 PM EST, Kevin Vahey <> wrote:  
 Does anybody recall when AT40 switched from vinal distribution to


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