Most streaming services contain some type of useful, academic movie material. Blockbuster online has Neil deGrasse Tyson's well-known Universe show, for example. That's a great one for going way back in the time. The big ones like Hulu, Blockbuster online, and Amazon Immediate Video all have a lot of traditional documentaries about a number of subjects. It's worth looking them up if you use one of these solutions already. They all cost superiority, but none of them are extremely costly.
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