Jake and the Fatman to The D.A.
5 connections
Jake and the Fatman
Diagnosis: Murder
Diagnosis Murder was a spinoff of Jake and the Fatman.
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.