20 series recommended for anyone who enjoyed Columbo, ordered by audience score.
The Mentalist
2008
Hudson & Rex
2019
Agatha Christie's Poirot
1989
Homicide: Life on the Street
1993
Endeavour
2013
Elementary
2012
Murder, She Wrote
1984
Vera
2011
Kojak
1973
77 Sunset Strip
1958
The Mysteries of Laura
2014
Diagnosis: Murder
Barnaby Jones
The Glades
2010
Dragnet
1967
Hart to Hart
1979
Ironside
Baretta
1975
1951
Jake and the Fatman
1987
