In the 1970s, You’re a Good Man, Charlie Brown composer Clark Gesner made a series of found signage-based videos for PBS’ The Electric Company. The song above is our favorite because of the nonsensical lyrics, but the two below, the original Sign Song (later used for Sesame Street) and Office Sign Song are also ever-catchy, still great for reading comprehension, and are now 40-year-old culture and technology time capsules:

Watch more typography, more PBS, and more videos from the 1970s.

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