NCIS: New Orleans to The D.A.
7 connections
NCIS: New Orleans
NCIS
NCIS: New Orleans spunoff of NCIS
JAG
NCIS was a spinoff of JAG
Diagnosis: Murder
Oceanic Airlines
Matlock
Diagnosis Murder's Dr Mark Sloan was defended by Matlock when Sloan was accused of murder
Emergency!
Both feature the fictional Trans Global Airlines
Adam-12
Emergency! had a crossover with Adam-12 to find a boy who ran away from the hospital.
The D.A.
Adam-12 had a two part crossover with The D.A.