Season 1 of Derrick premiered on Oct 20, 1974
Season 2 of Derrick premiered on Jan 12, 1975
Season 3 of Derrick premiered on Jan 11, 1976
Season 4 of Derrick premiered on Jan 23, 1977
Season 5 of Derrick premiered on Jan 06, 1978
Season 6 of Derrick premiered on Jan 05, 1979
Season 7 of Derrick premiered on Jan 04, 1980
Season 8 of Derrick premiered on Jan 02, 1981
Season 9 of Derrick premiered on Jan 22, 1982
Season 10 of Derrick premiered on Feb 04, 1983
Season 11 of Derrick premiered on Jan 20, 1984
Season 12 of Derrick premiered on Jan 18, 1985
Season 13 of Derrick premiered on Jan 03, 1986
Season 14 of Derrick premiered on Jan 02, 1987
Season 15 of Derrick premiered on Jan 08, 1988
Season 16 of Derrick premiered on Jan 06, 1989
Season 17 of Derrick premiered on Jan 05, 1990
Season 18 of Derrick premiered on Jan 04, 1991
Season 19 of Derrick premiered on Jan 17, 1992
Season 20 of Derrick premiered on Jan 22, 1993
Season 21 of Derrick premiered on Jan 07, 1994
Season 22 of Derrick premiered on Jan 06, 1995
Season 23 of Derrick premiered on Jan 05, 1996
Season 24 of Derrick premiered on Jan 03, 1997
Season 25 of Derrick premiered on Jan 23, 1998