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