Here is a wonderful old propaganda film by none other than General Electric from the Prelinger Archives depicting the history of electricity in the United States. A great study of propaganda in general and a frightening/inspiring look at what GE was trying to accomplish back in the day, including a list of modern household, agricultural and industrial innovations, and possible new realms of electricity generation (they mention that home atomic generators probably won't be developed and they talk about harnessing the energy of the sun through photosynthesis).
I wonder a bit about the significance of the fact that the word communism is never actually used, so that the freedom from tyranny line seemed to me to come out of left field with no overt enemy. I suppose back then it really wasn't necessary to spell it out, however. Everyone knew that it was the domino effect we were afraid of, but I think it's an interesting manifestation of the way the Cold War was fought, in this underhanded, irrational, unspoken kind of way.
Double points if you decide to watch a newer piece of propaganda from the same company... Ah! The evolution of propaganda from the cosiness of your own Personal Computer.