"He could never, ever, ever change his hair, and he was so mad ... are Bob Ross Clubs; T-shirts display his image and sayings; and his famous quotes are the basis for many Internet memes.

Growing up, writer and director Brit McAdams was fascinated by the quietly captivating Bob Ross. He regularly watched Ross’ PBS series, “The Joy of Painting,” which aired from 1983 to 1994.

The happy little trees are a little bit sadder and nothing will ever be the same again now that we know the truth about Bob ... mad about that," Kowalski said. "He got tired of that curly hair ...