with 19 episodes premiered on January 2, 1978

with 13 episodes premiered on October 27, 1980

with 6 episodes premiered on January 31, 1983

with 10 episodes premiered on October 15, 1984

with 12 episodes premiered on March 10, 1986

with 14 episodes premiered on January 5, 1987

with 11 episodes premiered on October 3, 1988

with 13 episodes premiered on January 2, 1989

with 15 episodes premiered on October 22, 1990

with 15 episodes premiered on September 10, 1992

with 15 episodes premiered on October 28, 1993

with 9 episodes premiered on April 24, 1996

with 11 episodes premiered on January 16, 1997

with 19 episodes premiered on November 15, 1997

with 12 episodes premiered on October 7, 1998

with 16 episodes premiered on January 6, 1999

with 8 episodes premiered on September 22, 1999

with 17 episodes premiered on February 2, 2000

with 12 episodes premiered on September 6, 2000

with 11 episodes premiered on September 19, 2001

with 7 episodes premiered on April 10, 2002

with 9 episodes premiered on October 8, 2002

with 12 episodes premiered on December 27, 2002

with 13 episodes premiered on September 23, 2003

with 8 episodes premiered on March 2, 2004

with 12 episodes premiered on September 21, 2004

with 9 episodes premiered on February 1, 2005

with 5 episodes premiered on July 6, 2005

with 13 episodes premiered on December 30, 2005

with 12 episodes premiered on October 2, 2006

with 9 episodes premiered on February 5, 2007

with 13 episodes premiered on October 15, 2007

with 13 episodes premiered on January 28, 2008

with 20 episodes premiered on October 27, 2008

with 20 episodes premiered on October 19, 2009

with 21 episodes premiered on October 25, 2010

with 22 episodes premiered on October 3, 2011

with 24 episodes premiered on October 1, 2012

with 25 episodes premiered on September 30, 2013

with 23 episodes premiered on October 20, 2014

with 25 episodes premiered on October 5, 2015

with 26 episodes premiered on October 3, 2016

with 27 episodes premiered on September 11, 2017

with 22 episodes premiered on November 5, 2018

with 13 episodes premiered on December 1, 2019

with 15 episodes premiered on September 21, 2020