Girlfriends to NCIS: LA
13 connections
Girlfriends
Moesha
Dorian from Moesha appeared on episode of Girlfriends with Girlfriends' character Maya who later returned the favor and appeared in a episode of Moesha.
The Parkers
The Parkers was a spinoff of Moesha
The Hughleys
The Hughleys crossed over with The Parkers.
The Drew Carey Show
The Drew Carey Show's Mimi appeared in an episode of The Hughleys
Coach
The Drew Carey Show did a cross over with Coach.
Newhart
Newhart's Larry, Darryl and Darryl squatted in Coach's Hayden and Christine's home
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