You will be given a definition of a task first, then some input of the task.
Generate a correct and concise answer for the question based on the words in the context.

Context : The Secrets of Isis, originally broadcast as Isis, is an American live-action superhero television series produced by Filmation from 1975 to 1977 for CBS's Saturday morning lineup.
Question : Which channel broadcast The Secrets of Isis?
Output:
CBS