Bob Saget, who in the past called Bill Cosby a mentor of his, has been reluctant to weigh in on the recent sexual assault allegations against the embattled actor and comedian. But in an appearance on HuffPost Live on Tuesday, Saget, responding to a fan's question, said that Cosby's legacy has been tarnished. Saget said, "I think any human being that does things that are despicable to other human beings will be slightly tarnished by history.