I sometimes find this site to be a good resource. I didn't see this show listed but you could contact him and see if he knows anything.
-------- Original Message --------
From: Tamara Hallo <[log in to unmask]>
Sent: Monday, April 2, 2018 03:55 PM
To: [log in to unmask]
Subject: [ARSCLIST] Looking for Audio Recording
> My name is Tamara Hallo and I am a professional genealogist in Miami,
> Florida. I am putting together information for a client that includes audio
> of her mother singing on the radio show
> The Morris B. Sachs Amateur Hour sometime around 1945 where she won a
> watch. Does anyone have an idea where I can find recordings of this show?
> Thank you,
> Tamara Hallo, MLS
> Professional Genealogist