NASA has posted on its YouTube channel a video from 1973 discussing the Landsat program, which it calls "the longest continuous global record of Earth observations from space" (the latest satellite, Landsat 8, is scheduled to launch in 2013). The 1973 video talked about the Earth Resources Technology Satellite (renamed Landsat 1), and featured discussions of scientists doing science-y things, but accompanied by a typically odd, yet appropriate for the '70s, soundtrack.
I bet a lot of schoolkids in the '70s were forced to watch this film during science class, at least when "The Red Balloon" wasn't available.
Keith Shaw rounds up the best in geek video in his ITworld.tv blog. Follow Keith on Twitter at @shawkeith. For the latest IT news, analysis and how-tos, follow ITworld on Twitter, Facebook, and Google+.