fred silverman (september 13, 1937 – january 30, 2020) was an american television executive and producer. he worked as an executive at all of the big three television networks, abc, cbs and nbc. he produced "scooby-doo" (1969–present), "all in the family" (1971–1979), "the waltons" (1972–1981), and "charlie's angels" (1976–1981). he was born in new york city.