Apparently Mr. Rogers gave key testimony in Sony v. Universal, the Supreme Court case which cleared the way for home taping.  The story of the testimony is here, via The New York Lawyer.  Good quote:

My whole approach in broadcasting has always been “You are an important person just the way you are. You can make healthy decisions.” Maybe I’m going on too long but I just feel that anything that allows a person to be more active in the control of his or her life, in a healthy way, is important.

Oblique title reference explained here.