The site is a wealth of vintage publications from Videos to audio files to magazines and catalogs.
I could spend a week here and not find my way out.
Make sure you go to the root of the website and view the different source files that are available. Library of Congress, Old Time Radio audio, and over a million vintage T.V. files of every kind.
https://archive.org/
Don't bypass the Microfilms of newspapers. Sheesh!
Enjoy!