All of these crossovers are part of the Tommy Westphall Universe. Some crossover enthusiasts have created crossovers where it does not make much sense. Here are those I consider non-crosses, however there may still be crossovers in these non-crosses.
Drag a big net
Dragnet spun off a film of the same name in 1954, Dragnet 1967, Dragnet 1966, Dragnet (1987), The New Dragnet, and Dragnet (2003) which was renamed L.A. Dragnet.
The character Jim Reed from Dragnet 1967
The Phony Police Racket and
The Big Search went on to appear as a regular on Adam-12. Once on Adam-12, he and Pete Malloy appeared on Dragnet 1967
Internal Affairs: DR-20 and Emergency!
The Radical concludes on The D.A.
People vs. Saydo. Adam-12 spun off The New Adam-12.
The D.A. is a spin off of two television films: The D.A.: Murder One and The D.A.: Conspiracy to Kill.
John Gage and Roy DeSoto from Emergency! appeared on Adam-12
Lost and Found and Sierra
The Urban Rangers. Emergency! spun off six television films. Emergency!
Girl on the Balance Beam has an unconfirmed crossover with several series from an appearance or mention of Trans Global Airlines.
Either station or squad 51 from Emergency! appeared on CHiPs
MAIT Team, and
Hot Wheels. CHiPs spun off the contiguous CHiPs '99 and noncontiguous CHiPs (2017).
The Man from U.N.C.L.E. Gets Smart
On The Man from U.N.C.L.E.
The Bow-Wow Affair, the character Guido Panzini appeared. Guido Panzini would go on to appear on McHale's Navy
McHale's Country Club Caper and One Day at a Time
McHale's Navy spun off Broadside and had two theatrical films with the main cast and one theatrical film with Quinton McHale's son Quinton McHale, Jr.
The Man from U.N.C.L.E. spun off The Girl from U.N.C.L.E. There were eight theatrical films released which were made using episodes from the series. The last theatrical film The Return of the Man from U.N.C.L.E. was new.
The Man from U.N.C.L.E. characters Napoleon Solo and Illya Kuryakin appear on Please Don't Eat the Daisies
Say UNCLE. The Girl from U.N.C.L.E. character April Dancer appeared on Please Don't Eat the Daisies
Remember Lake Serene?
Get Smart, Again!, the second film sequel to Get Smart, mentioned T.H.R.U.S.H., the evil organization from The Man from U.N.C.L.E. The Nude Bomb is the first film sequel to Get Smart. Get Smart also spun off another television series with the same name in 1995. (I'm not home!)
The 2008 Get Smart film and its spin off are not within the same continuity.
All in the Families
All in the Family resulted in a total of six other series. Edith Bunker's cousin, Maude Findlay received her own series, Maude. The Bunker's neighbors, George and Louise Jefferson, spun off to their own show, The Jeffersons. All in the Family spun off Archie Bunker's Place. Archie and Edith Bunker's daughter, Gloria divorced her husband and received her own series, Gloria. The Bunker's house appeared with new occupants many years later in 704 Hauser.
Florida Evans of Maude spun off to her own series, Good Times. The series Hanging In is considered a spin-off of Maude, however its stories are not connected to this cosmology. Also, Barbara Rhoades played Maggie Gallagher on Hanging In and Maggie Chandler on Soap. Because Gallagher ≠ Chandler, there was no crossover. Soap spun off Benson.
Florence Johnston of The Jefferson's briefly had her own series, Checking In. George Jefferson appeared on the pilot of E/R. The Jeffersons appeared on the finale of The Fresh Prince of Bel-Air along with Philip Drummond and Arnold Jackson-Drummond of Diff'rent Strokes.
Hilary Banks of The Fresh Prince of Bel-Air appeared on Out All Night
The Great Pretender and Blossom
Wake Up Little Suzy. Carlton and Ashley Banks, also from The Fresh Prince of Bel-Air, appeared on In the House
Mrs. Garrett of Diff'rent Strokes spun off to The Facts of Life. Diff'rent Strokes and Hello, Larry shared three crossover episodes
Feudin' and Fussin', and
Thanksgiving Crossover on both series. (I'm not home!) Arnold Jackson-Drummond made an appearance on Silver Spoons
The Great Computer Caper.
If Greg Morris appeared on The Jeffersons three-part
Mission Incredible as his character Barney Collier from Mission: Impossible, this continuity would cross with
Hawaii 5-0 is a remake of Hawaii 5-O and used footage from the original's episode "Wooden Model of a Rat" in the episode "Kalele". While Ed Asner reprised his character August March from the original in the remake, the back story is very different between the series.
In Magnum P.I. "Skin Deep", Thomas Magnum mentioned Steve McGarrett of Hawaii 5-O. Magnum P.I.
Ki'is Don't Lie ends on Simon & Simon
Emeralds Are Not a Girl's Best Friend. Magnum P.I.
Novel Connection ends on Murder, She Wrote
Magnum on Ice.
Murder, She Wrote spun off The Law & Harry McGraw.
A.J. Simon from Simon & Simon appeared on Whiz Kids
Deadly Access, then Richie and Irene Adler of Whiz Kids appeared on Simon & Simon
Fly the Alibi Skies.
JAG and NCIS
JAG was on NBC for one season before moving to CBS. It has been severed from Westphall because it used stock footage of Oceanic Airlines from the film Executive Decision not the logo from Lost.
Edward Sheffield from JAG first appeared on First Monday in three episodes.
Ice Queen and
Meltdown were the backdoor pilot for NCIS.
Legend was the backdoor pilot to NCIS: Los Angeles. NCIS two-part
Crescent City was the backdoor pilot to NCIS: New Orleans.
Kensi Blye from NCIS: Los Angeles appeared on Hawaii 5-0 "Ka Hakaka Maika'i". G. Callen and Sam Hannah from NCIS: Los Angeles appeared on Hawaii 5-0
Pa Make Loa which concluded on NCIS: Los Angeles
Touch of Death with Daniel Williams and Chin Ho Kelly from Hawaii 5-0 appearing.
Hetty Lange from NCIS: Los Angeles appeared on Scorpion
Dominic Alonzo from Arrow
The Undertaking was mentioned on Hawaii Five-0
Ho'oilina. Arrow spun off The Flash and Legends of Tomorrow. John Constantine from Constantine appeared on Arrow
When the titular character from the 2016 The Flash traveled to Earth-2 in
Welcome to Earth-2, the Flash from the 1990 The Flash is seen along with Supergirl. The Trickster and Tina McGee from the 1990 The Flash also appear on the 2016 The Flash. The Flash appeared on Supergirl
Barry Allen and Cisco Ramone from The Flash appeared on Supergirl "Medusa" which brought Supergirl onto the "Invasion!" episodes on The Flash, Arrow, and Legends of Tomorrow.
Chin Ho Kelly, Kono Kalakaua, and Kamekona from Hawaii 5-0 will appear in MacGyver "Flashlight". MacGyver is a reboot of the ABC series of the same name.
Alias Jesse James and The Gambler Returns: The Luck of the Draw assembled large groups of western television characters.
Alias Jesse James had appearances of Tonto, played by Jay Silverheels, from The Lone Ranger (Holy defenestration, Batman!); Will Kane, played by Gary Cooper, from High Noon; Annie Oakley, played by Gail Davis, from Annie Oakley; Wyatt Earp, played by Hugh O'Brian, from The Life and Legend of Wyatt Earp; Matt Dillon, played by James Arness, from Gunsmoke; Seth Adams, played by Ward Bond, from Wagon Train; and Bret Maverick, played by James Garner, from Maverick.
The Gambler Returns: The Luck of the Draw had appearances of Wyatt Earp, played by Hugh O'Brian, from The Life and Legend of Wyatt Earp; Cheyenne Bodie, played by Clint Walker, from Cheyenne; Bart Maverick, played by Jack Kelly, from Maverick; Lucas and Mark McCain, played by Chuck Connors and Johnny Crawford, from The Rifleman; Bat Masterson, played by Gene Barry, from Bat Masterson; Dave Blassingame, played by Brian Keith, from The Westerner; and Kwai Chang Caine, played by David Carradine, from Kung Fu. Paladin from Have Gun - Will Travel is mentioned.
Cheyenne spun off Bronco. Gunsmoke spun off Dirty Sally. Maverick spun off Young Maverick and Brett Maverick. The Rifleman spun off Law Of The Plainsman. Kung Fu spun off Kung Fu: The Legend Continues.
The Gambler Returns: The Luck of the Draw is the fourth film in the series which began with Kenny Rogers as The Gambler. Kenny Rogers as The Gambler: The Adventure Continues and Kenny Rogers as The Gambler, Part III: The Legend Continues preceded The Gambler Returns and Gambler V: Playing for Keeps succeeded it.
Holy defenestration, Batman!
On Batman many actors have stuck their heads out of a window while Batman and Robin were climbing a wall. In rare cases, a character would stick his head out of a window. These are not crossovers by my definition, though others include them.
When Bill Dana stuck his head out of a window, he appeared as himself not Jose Jimenez from The Bill Dana Show. (Lucy Makes Room for Daddy)
The Addams Family was canceled several months prior to Lurch sticking his head out of a window on Batman.
Batman was set in the 60s, so when Colonel Klink from the World War II era's Hogan's Heroes stuck his head out of a window, he was very out of date. (Hooterville)
A crossover did not happen when The Green Hornet and Kato stuck their heads out of a window in season two of Batman. Near the end of season two, there was a crossover when The Green Hornet and Kato appeared on the Batman episodes
A Piece of the Action and
Batman's Satisfaction. The Green Hornet is a nephew of The Lone Ranger in their respective radio shows. The radio shows were by the same company and then made into television series by the same people, so their crossover works.
No News for the Detectives
A crossover between Columbo, Wonder Woman, Matt Houston, Remington Steele, Moonlighting, City of Angels, Burke's Law (1994), and 24 for allegedly using the Los Angeles Tribune, the fictional newspaper from Lou Grant, was attempted. With the amount of networks involved and no discernible connections, I do not see this as a crossover.
Mary Tyler Moore
The Mary Tyler Moore Show spun off four series: Rhoda, Phyllis, Lou Grant, and Mary and Rhoda. (I'm not home!)
Columbo spun off the non-contiguous Mrs. Columbo. Mrs. Columbo went through three name changes: Kate Columbo, Kate the Detective, and Kate Loves a Mystery.
Burke's Law (1963) was renamed Amos Burke, Secret Agent in season three. It spun off Burke's Law (1994).
The titular character of Honey West appeared on Burke's Law (1963)
Who Killed the Jackpot? and Burke's Law (1994)
Who Killed Nick Hazard?.
Max from Hart to Hart appeared on Moonlighting
It's a Wonderful Job. In the next Moonlighting episode,
The Straight Poop, Pierce Brosnan from Remington Steele appeared as himself.
I'm not home!
Many series have been linked because of the series Hi Honey, I'm Home!. Hi Honey, I'm Home! takes the characters out of their original continuities and places them into another. Since they are outside their original continuity, they are not the same characters. So the following do not cross with each other or anything above.
- Adventures of Superman
- The Donna Reed Show or Dennis The Menace though they did cross.
- The Many Loves of Dobie Gillis
- The Munsters and its spin-offs
- My Mother the Car
- Get Smart (The Man from U.N.C.L.E. Gets Smart)
- The Mary Tyler Moore Show (Mary Tyler Moore)
- Hello, Larry (All in the Families)
- The Cosby Show and its spin-off A Different World
- All the following, while not contiguous with the above, are contiguous with each other starting with I Love Lucy.
Series with two or more colors were on multiple networks. The main color is the series last network.