# TV Shows that "Join up" for an episode **URL:** \ **Category:** Cafe Society\ **Created:** [December 12, 2013, 3:30pm UTC](https://boards.straightdope.com/t/tv-shows-that-join-up-for-an-episode/676159 "2013-12-12T15:30:07Z")\ **Posts on this page:** 20\ **Page:** 2
**Author:** ![Kimballkid](https://avatars.discourse-cdn.com/v4/letter/k/b5a626/32.png) [@Kimballkid](https://boards.straightdope.com/u/Kimballkid)\ **Post date:** [December 12, 2013, 4:47pm UTC](https://boards.straightdope.com/t/tv-shows-that-join-up-for-an-episode/676159/21 "2013-12-12T16:47:17Z")
> [@Kimballkid](#): > > From the way I read the OP, he/she’s looking for shows that crossed over to actually form a whole new show, not one-off episodes. Now that I read it again, maybe he is looking for one-off episodes, but that shouldn’t have been very hard to think of tons of them as evidenced by this thread. I’m thoroughly confused. ---
**Author:** ![astorian](https://avatars.discourse-cdn.com/v4/letter/a/ad7895/32.png) [@astorian](https://boards.straightdope.com/u/astorian)\ **Post date:** [December 12, 2013, 4:49pm UTC](https://boards.straightdope.com/t/tv-shows-that-join-up-for-an-episode/676159/22 "2013-12-12T16:49:40Z")
Some of the detectives on the old Quinn Martin shows of the Seventies did crossovers. Barnaby Jones (Buddy Ebsen) first appeared on an episode on William Conrad’s _ **Cannon** _, and there was one week where an episode of _ **Cannon** _ ended in a cliffhanger that was resolved on _ **Barnaby Jones** _. There was an episode of _ **E.R.** _ in which Sherry Stringfield’s junkie sister was missing in New York City, and she sought help from police officer “Bosco” Boscarelli from _ **Third Watch** _. On the short-lived Seventies legal sitcom _ **The Associates** _, John Houseman appeared as Professor Charles Kingsfield from _ **The Paper Chase** _. Houseman was supposed to be an old enemy of corporate lawyer Wilfrid Hyde-White, and they traded insulting witticisms (I remember Hyde-White sneering “Those who can, do. Those who can’t, teach.” ---
**Author:** ![control-z](https://avatars.discourse-cdn.com/v4/letter/c/eada6e/32.png) [@control-z](https://boards.straightdope.com/u/control-z)\ **Post date:** [December 12, 2013, 4:51pm UTC](https://boards.straightdope.com/t/tv-shows-that-join-up-for-an-episode/676159/23 "2013-12-12T16:51:17Z")
Magnum PI and Simon & Simon X-Files and COPS X-Files and Picket Fences X-Files and The Simpsons Family Matters and Full House I never saw Picket Fences, but I’d like to at least the crossover episode. ---
**Author:** ![Czarcasm](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/czarcasm/32/4050_2.png) [@Czarcasm](https://boards.straightdope.com/u/Czarcasm)\ **Post date:** [December 12, 2013, 4:53pm UTC](https://boards.straightdope.com/t/tv-shows-that-join-up-for-an-episode/676159/24 "2013-12-12T16:53:05Z")
Dallas and The Simpsons ---
**Author:** ![KneadToKnow](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/kneadtoknow/32/3999_2.png) [@KneadToKnow](https://boards.straightdope.com/u/KneadToKnow)\ **Post date:** [December 12, 2013, 5:00pm UTC](https://boards.straightdope.com/t/tv-shows-that-join-up-for-an-episode/676159/25 "2013-12-12T17:00:56Z")
> [@Happy\_Lendervedder](#): > > Would’ve been nice to have seen a GOB cameo on SVU. They could have squeezed him into the one with the magician in the coffin. Just a cameo, where he’s explaining to someone, “Not tricks, illusions. A trick is something a whore does for money.” ---
**Author:** ![Prof.Pepperwinkle](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/prof.pepperwinkle/32/13627_2.png) [@Prof.Pepperwinkle](https://boards.straightdope.com/u/Prof.Pepperwinkle)\ **Post date:** [December 12, 2013, 5:05pm UTC](https://boards.straightdope.com/t/tv-shows-that-join-up-for-an-episode/676159/26 "2013-12-12T17:05:17Z")
NCIS’s Abby showed up in a couple of episodes NCIS: Los Angeles. And NCIS Director Leon Vance has been there occasionally throughout its whole run. ---
**Author:** ![Idle\_Thoughts](https://avatars.discourse-cdn.com/v4/letter/i/838e76/32.png) [@Idle\_Thoughts](https://boards.straightdope.com/u/Idle_Thoughts)\ **Post date:** [December 12, 2013, 5:13pm UTC](https://boards.straightdope.com/t/tv-shows-that-join-up-for-an-episode/676159/27 "2013-12-12T17:13:39Z")
Back in the early 90s there was the same tornado that blew threw 3-4 sitcoms that were in a row (on the same channel). I don’t remember all the shows that were involved, but one of them was Roseanne. It was dubbed something like “Tornado Night!” And on November 7, 1997 the cat from Sabrina the Teenage Witch was observed running through the 3 shows following it while Sabrina was trying to catch him (Boy Meets World, Teen Angel, and You Wish) at some point. The Pretender and the Profiler had one where they appeared on each other’s shows. ---
**Author:** ![KneadToKnow](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/kneadtoknow/32/3999_2.png) [@KneadToKnow](https://boards.straightdope.com/u/KneadToKnow)\ **Post date:** [December 12, 2013, 5:15pm UTC](https://boards.straightdope.com/t/tv-shows-that-join-up-for-an-episode/676159/28 "2013-12-12T17:15:49Z")
> [@Idle\_Thoughts](#): > > Back in the early 90s there was the same tornado that blew threw 3-4 sitcoms that were in a row (on the same channel). I don’t remember all the shows that were involved, but one of them was Roseanne. It was dubbed something like “Tornado Night!” > > And on November 7, 1997 the cat from Sabrina the Teenage Witch was observed running through the 3 shows following it while Sabrina was trying to catch him (Boy Meets World, Teen Angel, and You Wish) at some point. I think the power went out in New York for an entire Must See TV one night, too. ---
**Author:** ![Alessan](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/alessan/32/465_2.png) [@Alessan](https://boards.straightdope.com/u/Alessan)\ **Post date:** [December 12, 2013, 5:24pm UTC](https://boards.straightdope.com/t/tv-shows-that-join-up-for-an-episode/676159/29 "2013-12-12T17:24:00Z")
Community had a crossover with Cougar Town. Sort of. ---
**Author:** ![KneadToKnow](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/kneadtoknow/32/3999_2.png) [@KneadToKnow](https://boards.straightdope.com/u/KneadToKnow)\ **Post date:** [December 12, 2013, 5:34pm UTC](https://boards.straightdope.com/t/tv-shows-that-join-up-for-an-episode/676159/30 "2013-12-12T17:34:19Z")
> [@KneadToKnow](#): > > I think the power went out in New York for an entire Must See TV one night, too. It’s also revealed at some point that Paul from _Mad About You_ and Kramer from _Seinfeld_ used to be either roommates or neighbors. ---
**Author:** ![HelenGawn](https://avatars.discourse-cdn.com/v4/letter/h/a88e4f/32.png) [@HelenGawn](https://boards.straightdope.com/u/HelenGawn)\ **Post date:** [December 12, 2013, 5:54pm UTC](https://boards.straightdope.com/t/tv-shows-that-join-up-for-an-episode/676159/31 "2013-12-12T17:54:18Z")
_Ally McBeal_ and _The Practice_ had a two-parter that started on one and ended on the other. Especially special since the two were on different networks, and one was a comedy and the other a drama. ---
**Author:** ![What\_Exit](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/what_exit/32/10652_2.png) [@What\_Exit](https://boards.straightdope.com/u/What_Exit)\ **Post date:** [December 12, 2013, 6:20pm UTC](https://boards.straightdope.com/t/tv-shows-that-join-up-for-an-episode/676159/32 "2013-12-12T18:20:36Z")
> [@KneadToKnow](#): > > It’s also revealed at some point that Paul from _Mad About You_ and Kramer from _Seinfeld_ used to be either roommates or neighbors. I’m thinking that either Kramer was subletting Paul’s old apartment or Paul was subletting Kramer’s old apartment. [Found this](http://mapsaboutnothing.wordpress.com/2013/05/14/kramers-apartment/): > [@](#): > > _It is revealed that Kramer is subletting the apartment from Paul Buchman, Paul Reiser’s character from the sitcom “Mad About You.”_ ---
**Author:** ![KneadToKnow](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/kneadtoknow/32/3999_2.png) [@KneadToKnow](https://boards.straightdope.com/u/KneadToKnow)\ **Post date:** [December 12, 2013, 6:22pm UTC](https://boards.straightdope.com/t/tv-shows-that-join-up-for-an-episode/676159/33 "2013-12-12T18:22:03Z")
> [@What\_Exit](#): > > I’m thinking that either Kramer was subletting Paul’s old apartment or Paul was subletting Kramer’s old apartment. Yeah, you’re right. It was something like that. In my head, it happened the same night as the backwards episode of _Seinfeld_, but I can’t be troubled to look it up right now. ---
**Author:** ![Accidental\_Martyr](https://avatars.discourse-cdn.com/v4/letter/a/ce7236/32.png) [@Accidental\_Martyr](https://boards.straightdope.com/u/Accidental_Martyr)\ **Post date:** [December 12, 2013, 6:35pm UTC](https://boards.straightdope.com/t/tv-shows-that-join-up-for-an-episode/676159/34 "2013-12-12T18:35:22Z")
I would like to go on record and say that the _Magnum P.I._ and _Simon & Simon_ crossover is one of the greatest events in television history. (At least it was when I was 14.) 😉 ---
**Author:** ![Odesio](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/odesio/32/20003_2.png) [@Odesio](https://boards.straightdope.com/u/Odesio)\ **Post date:** [December 12, 2013, 6:41pm UTC](https://boards.straightdope.com/t/tv-shows-that-join-up-for-an-episode/676159/35 "2013-12-12T18:41:42Z")
> [@control-z](#): > > I never saw Picket Fences, but I’d like to at least the crossover episode. Picket Fences and X-Files never did a crossover episode. There were some plans to do one but CBS decided they really didn’t need to be promoting another network’s television program. > **[Red Museum](https://en.wikipedia.org/wiki/Red_Museum)** > > "Red Museum" is the tenth episode of the second season of the science fiction television series The X-Files. It premiered on the Fox network on December 9, 1994. It was written by Chris Carter, directed by Win Phelps, and featured guest appearances by Steve Eastin, Mark Rolston, Paul Sand, Bob Frazer, and Robert Clothier. The episode helps to explore the series' overarching mythology. "Red Museum" earned a Nielsen household rating of 10.4, being watched by 9.9 million households in its initi... ---
**Author:** ![SpoilerVirgin](https://avatars.discourse-cdn.com/v4/letter/s/4491bb/32.png) [@SpoilerVirgin](https://boards.straightdope.com/u/SpoilerVirgin)\ **Post date:** [December 12, 2013, 6:55pm UTC](https://boards.straightdope.com/t/tv-shows-that-join-up-for-an-episode/676159/36 "2013-12-12T18:55:41Z")
_Crossing Jordan_ did at least two crossover episodes with _Las Vegas_. Supposedly Jill Hennessey (who played Jordan), met Josh Duhamel of _Las Vegas_ at some network event, and wanted to work with him. I just watched several of the Law & Order/Homicide crossover episodes on DVD. The relationship between Briscoe and Munch was a thing of beauty – they really deserved their own spinoff show. ---
**Author:** ![thelurkinghorror](https://avatars.discourse-cdn.com/v4/letter/t/7c8e57/32.png) [@thelurkinghorror](https://boards.straightdope.com/u/thelurkinghorror)\ **Post date:** [December 12, 2013, 6:58pm UTC](https://boards.straightdope.com/t/tv-shows-that-join-up-for-an-episode/676159/37 "2013-12-12T18:58:20Z")
_Sons of Anarchy_ and _the Shield_ are kinda/sorta the same universe. Mostly it’s just references, like shared actors, but not characters, but apparently there are references in Sons. The One-Niners are a street gang mentioned in both. ---
**Author:** ![KneadToKnow](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/kneadtoknow/32/3999_2.png) [@KneadToKnow](https://boards.straightdope.com/u/KneadToKnow)\ **Post date:** [December 12, 2013, 8:02pm UTC](https://boards.straightdope.com/t/tv-shows-that-join-up-for-an-episode/676159/38 "2013-12-12T20:02:50Z")
> [@KneadToKnow](#): > > Yeah, you’re right. It was something like that. In my head, it happened the same night as the backwards episode of _Seinfeld_, but I can’t be troubled to look it up right now. Nope. Same night as “The Virgin.” And according to IMDb, Kramer was sub-letting Paul’s old bachelor pad. ---
**Author:** ![glee](https://avatars.discourse-cdn.com/v4/letter/g/b5a626/32.png) [@glee](https://boards.straightdope.com/u/glee)\ **Post date:** [December 12, 2013, 8:45pm UTC](https://boards.straightdope.com/t/tv-shows-that-join-up-for-an-episode/676159/39 "2013-12-12T20:45:43Z")
> [@silenus](#): > > _CSI_ showed up on _Two and a Half Men_ to investigate Teddy’s death. Yes, as you say the _CSI_ writers wrote an episode of _Two and a Half Men_ (a couple of CSI actors guest starred); then the _Two and a Half Men_ writers did an episode of _CSI_ (where an unpopular female TV star was the first murder.) ---
**Author:** ![Jim\_s\_Son](https://avatars.discourse-cdn.com/v4/letter/j/e19adc/32.png) [@Jim\_s\_Son](https://boards.straightdope.com/u/Jim_s_Son)\ **Post date:** [December 12, 2013, 9:01pm UTC](https://boards.straightdope.com/t/tv-shows-that-join-up-for-an-episode/676159/40 "2013-12-12T21:01:20Z")
> [@Folacin](#): > > Don’t know if it is what you’re looking for - but _Petticoat Junction_, _Green Acres_ and _Beverly Hillbillies_ were all in the same universe and dropped into each other’s stories occasionally. None of them were spinoffs IMO. There was also an episode of “Green Acres” where Lisa and Oliver are reminiscing about how they met during World War II. When Oliver tells the control tower back in England that he has to parachute out his his plane, the flight controller advises him that if he ends up in Stalag 13 to look up a chap named Hogan. Werner Klemperer made an appearance during a Bat Climb where he referred to as Colonel. There is a Desi Arnaz Lucille Ball Comedy Hour episode where they sublet their house to the Danny Thomas tv family. Ends up in court where the judge is Gale Gordon, who was almost Fred Mertz and would become Mr Mooney. [Previous page](https://boards.straightdope.com/t/tv-shows-that-join-up-for-an-episode/676159.md?page=1) [Next page](https://boards.straightdope.com/t/tv-shows-that-join-up-for-an-episode/676159.md?page=3)