WI 24 hour television in mid 1930s

What if the television technology was advanced enought to allow 4 hour transmitions by the mid 1930s? How this would affect the development of the culture and affect totalitarian states like the soviet union, fascist italy and nazi germany?
 
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The Nazis had a crude form of tv broadcasting in Berlin.
Racial programs were featured.
The Russians were experimenting with close circuit according to sergi K
 
4 Hours was the run-time of the BBC shows from 1936-39. Also, you say 4 hours in the OP, but 24 in the title, so which is it?
 
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