Relatives[ edit ] Relatives of Velma shown during the series' run include: The retooled show was a success, remaining in production for four seasons and on ABC's lineup until Abracadabra-Doo , when the magic school she's enrolled in is being terrorized by a giant griffin. A part of her snorted cynically, surprised to find him alone. According to Ruby and Spears, Silverman was inspired by Frank Sinatra 's scat "doo-be-doo-be-doo" at the end of his recording of " Strangers in the Night " on a flight to one of the development meetings, and decided to rename the dog " Scooby-Doo " and re-rechristen the show Scooby-Doo, Where Are You!