Dragnet to Goober and the Trucker's Paradise [pilot only]
11 connections
Dragnet
Adam-12
The main characters from Adam-12 appear as witnesses in an episode of Dragnet
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
Mannix
Mannix returned to TV on an episode of Diagnosis Murder to solve an old unsolved case with the help of Dr Mark Sloan.
Here's Lucy
Here's Lucy's Lucy Carter and Mannix's Mannix are held hostage in an episode of Here's Lucy.
Make Room For Granddaddy
Make Room for Grandaddy's Williams had Here's Lucy's Lucy Carter as a houseguest
The Danny Thomas Show
The Danny Thomas Show came back as Make Room For Granddaddy
The Andy Griffith Show
Danny Thomas Show spun off The Andy Griffith Show after Danny Williams got arrested in Mayberry.
Mayberry R.F.D.
was a spin off of The Andy Griffith Show
Goober and the Trucker's Paradise [pilot only]
Goober and the Trucker's Paradise was a failed spin off of Mayberry R.F.D. that instead ran as a one-shot special that had Goober Pyle running a truck stop.