Fifty years ago, one man on one TV show created eight vividly memorable TV characters in every episode: The Librarian; Grizelda, the Ghastly Gourmet; Bwana Clyde Batty, The Oracle, The Count, The Marharishi, the record-spinning Wolfman and Dr. Pet Vet. Then he’d pull on a gorilla suit and fall on his face. The show was