The animated mystery-comedy “Scooby-Doo, Where Are You!” first aired on CBS.
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Swiss engineer George de Mestral patented velcro.
'Uncle Sam' became the official nickname of the United States.
Henry Bliss became the first person killed in an automobile accident in the United States.
American sitcom 'Soap' became the first show to display the warning 'Viewer discretion advised.'
The pilot episode of 'Supernatural,' created by Eric Kripke, aired on The WB Television Network.
