NCIS to Zeke and Luther
24 connections
NCIS
NCIS: LA
NCIS: LA was a spinoff of NCIS
Hawaii Five-O (2010)
NCIS: LA and Hawaii Five-O worked together in a crossover episode to stop a smallpox outbreak
Arrow
Hawaii Five-O references Dominic Alonzo from Arrow
Law & Order
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
Homicide: Life On The Street
Law and Order and Homicide crossed over on four episodes
Oz
Homicide's detectives watched Oz's Miss Sally on TV.
St. Elsewhere
St Elsewhere's hospital management company Weigert (was Ecumena) took over Oz's hospital.
The Bob Newhart Show
The Bob Newhart Show's Elliot Carlin visited the psych ward at St Elsewhere's St Eligius Hospital.
Newhart
The Bob Newhart Show's Bob Hartley woke up after dreaming the entire series Newhart during Newhart's finale.
Coach
Newhart's Larry, Darryl and Darryl squatted in Coach's Hayden and Christine's home
The Drew Carey Show
On a network crossover night, The Drew Carey Show, Grace Under Fire's Grace Kelly, Coach's Luther and Ellen's Paige and Spence all show up. Finally on Ellen, Paige and Spence run into Grace Kelly and Drew Carey
The Hughleys
The Drew Carey Show's Mimi appeared in an episode of The Hughleys
The Parkers
The Hughleys crossed over with The Parkers.
Moesha
The Parkers was a spinoff of Moesha
Clueless
Hakeem and Niecy from Moesha went to the prom with Cher and Sean from Clueless.
Sabrina the Teenage Witch
Sabrina from Sabrina the Teenage Witch visited Cher from Clueless in the episode "Mr. Wright."
Boy Meets World
Sabrina the Teenage Witch also crossed over with Boy Meets World on several other occasions.
Girl Meets World
Boy Meets World was continued decades later in Girl Meets World
Austin & Ally
Austin and Ally appear on an episode of Girl Meets World. Bringing the Disney Channel Live Action Universe into the Westphall Universe
Jessie
Jessie and Austin & Ally crossed over
Good Luck Charlie
Good Luck Charlie crossed over with Jessie
Dog with a Blog
At the end of the episode "Guess Who's a Cheater", Stan says "Good Luck, Charlie", just as Teddy Duncan does on that show
I'm In The Band
In the episode "Cat with a Blog", the band Metal Wolf from I'm In The Band is referenced.
Zeke and Luther
Burger from I"m In The Band nearly runs someone over, yelling "Skateboard on the sidewalk, Zeke!", in reference to Zeke and Luther