with 9 episodes premiered on February 8, 1978

with 18 episodes premiered on January 2, 1979

with 16 episodes premiered on January 8, 1980

with 19 episodes premiered on December 30, 1980

with 18 episodes premiered on January 5, 1982

with 18 episodes premiered on January 4, 1983

with 18 episodes premiered on January 3, 1984

with 19 episodes premiered on February 18, 1985

with 24 episodes premiered on January 7, 1986

with 24 episodes premiered on January 6, 1987

with 21 episodes premiered on January 5, 1988

with 20 episodes premiered on January 3, 1989

with 20 episodes premiered on January 2, 1990

with 20 episodes premiered on January 8, 1991

with 20 episodes premiered on January 7, 1992

with 20 episodes premiered on January 1, 1993

with 20 episodes premiered on January 4, 1994

with 20 episodes premiered on January 3, 1995

with 20 episodes premiered on January 23, 1996

with 20 episodes premiered on January 21, 1997

with 20 episodes premiered on January 27, 1998

with 20 episodes premiered on January 26, 1999

with 20 episodes premiered on January 25, 2000

with 20 episodes premiered on January 23, 2001

with 18 episodes premiered on January 29, 2002

with 20 episodes premiered on January 28, 2003

with 20 episodes premiered on January 6, 2004

with 20 episodes premiered on January 10, 2005

with 20 episodes premiered on November 7, 2005

with 20 episodes premiered on January 16, 2007

with 20 episodes premiered on April 14, 2008