George & Leo to NCIS: LA
8 connections
George & Leo
Newhart
Newhart's Dr. Michael Harris visited George & Leo
The Bob Newhart Show
The Bob Newhart Show's Bob Hartley woke up after dreaming the entire series Newhart during Newhart's finale.
St. Elsewhere
The Bob Newhart Show's Elliot Carlin visited the psych ward at St Elsewhere's St Eligius Hospital.
Homicide: Life On The Street
St Elsewhere's Dr Turner was investigated for murder by Homicide's Pembleton and Bayliss.
Law & Order
Law and Order and Homicide crossed over on four episodes
Arrow
Hudson University is the fictional University where many Law & Order characters graduated as well as the location of F.I.R.E.S.T.O.R.M. On Arrow
Hawaii Five-O (2010)
Hawaii Five-O references Dominic Alonzo from Arrow
NCIS: LA
NCIS: LA and Hawaii Five-O worked together in a crossover episode to stop a smallpox outbreak