Persistence

Air Date: August 5, 2003

Air Date: April 10, 2003

Air Date: January 25, 2003

Air Date: November 6, 2002

Air Date: July 11, 2002

Air Date: March 20, 2002

Air Date: December 5, 2001

Air Date: August 24, 2001

Air Date: May 11, 2001

Air Date: February 6, 2001

Air Date: November 6, 2000

Air Date: July 25, 2000

Air Date: March 28, 2000

Air Date: January 7, 2000

Air Date: October 26, 1999

Air Date: June 29, 1999

Air Date: March 16, 1999

Air Date: November 17, 1998

Air Date: August 5, 1998

Air Date: April 13, 1998

Air Date: January 12, 1998

Air Date: October 7, 1997

Air Date: July 2, 1997

Air Date: April 7, 1997

Air Date: December 23, 1996

Air Date: October 18, 1996

Air Date: August 9, 1996

Air Date: April 19, 1996

Air Date: December 26, 1995

Air Date: September 5, 1995

Air Date: June 13, 1995

Air Date: March 22, 1995

Air Date: January 3, 1995

Air Date: October 14, 1994

Air Date: July 26, 1994

Air Date: April 25, 1994

Air Date: January 3, 1994

Air Date: October 18, 1993

Air Date: July 26, 1993

Air Date: May 7, 1993

Air Date: February 8, 1993

Air Date: October 19, 1992

Air Date: July 20, 1992

Air Date: April 6, 1992

Air Date: January 1, 1992

Air Date: October 7, 1991

Air Date: July 1, 1991

Air Date: March 22, 1991

Air Date: December 28, 1990

Air Date: September 10, 1990

Air Date: May 14, 1990

Air Date: January 1, 1990

Air Date: August 7, 1989

Air Date: March 20, 1989

Air Date: November 21, 1988

Air Date: June 13, 1988

Air Date: December 28, 1987

Air Date: August 17, 1987

Air Date: April 20, 1987

Air Date: December 15, 1986

Air Date: September 1, 1986

Air Date: November 25, 1985

Air Date: June 24, 1985

Air Date: December 31, 1984

Air Date: July 24, 1984

Air Date: February 7, 1984

Air Date: September 27, 1983

Air Date: April 12, 1983

Air Date: November 2, 1982