<Table> <Tr> <Th_colspan="2"> Scooby - Doo </Th> </Tr> <Tr> <Td_colspan="2"> A scene from "What a Night for a Knight", the first episode of Scooby - Doo, Where Are You!--clockwise from top: Shaggy, Fred, Scooby, Velma, and Daphne </Td> </Tr> <Tr> <Th> Created by </Th> <Td> Joe Ruby Ken Spears </Td> </Tr> <Tr> <Th> Original work </Th> <Td> Scooby - Doo, Where Are You! (1969--70) </Td> </Tr> <Tr> <Th_colspan="2"> Official website </Th> </Tr> <Tr> <Td_colspan="2"> Official website </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Scooby - Doo </Th> </Tr>

When did the first scooby doo come out