Adam Curtis has made a long series of exceedingly excellent documentaries. My favorite is The Power of Nightmares, detailing the political background of the islamist and neo-conservative movements, and how they have changed politics by breeding a culture of fear in modern society.
He has also made All Watched Over By Machines of Loving Grace, which goes over the idea of self-correcting machines, within society, nature and human beings. The first part is hugely about Ayn Rand and the objectivist movements, as well as the rise of computers, the burst of the IT bubble and such.
Lastly (of the ones I know of) he has made The Century of the Self, of which I've only seen the first episode, but which details the change in how we view ourselves, and the rise of consumer culture through the use of psychoanalysis and clever manipulating of advertising.
You can find them all freely available on Youtube. Each episode is roughly an hour long, so you should be good, with all of these series, for about 10 hours. I promise they will be worth it!