MBS

I was watching the coverage of the 1936 presidental conventions and one of the news sources that was covering it was MBS. What is it and what happened to it? I also noticed that there was no ABC covering.

MBS is/was the Mutual Broadcast System

Some History of the Mutual Broadcasting System
The MBS section of the Broadcast Archive

Several more entries under yahoo’s advanced search.

ABC is the American Broadcasting Company and did not ‘exist’ until 1942 (if I read the dating correctly)
Encyclopedia Britannica entry on ABC

Just out of curiosity, where did you watch coverage of the 1936 presidential election? And do I know you . . .?

It was something on the history channel. I don’t really remember because I was half asleep. I can’t imagine you could know me.