Scooby Do fans! Learn the origins of Mystery Inc. and prepare for adventure when “SCOOB!” arrives on 4K UHD Combo Pack, Blu-ray and DVD from Warner Bros. Home Entertainment.  “SCOOB!” reveals the never-before-told story of Scooby’s origins. It shows how one of history’s most famous friendships began when an adorable, homeless puppy met a lonesome young boy named Shaggy, and how the two of them joined forces with aspiring young detectives Fred, Velma and Daphne to become the celebrated Mystery Inc.  Now, with hundreds of cases solved and adventures shared, Scooby and the gang face the biggest and most challenging mystery of their careers: a plot that will unleash the…