History ContinuityNod / LiveActionTV

* ''Series/{{Friends}}'': In an early episode Chandler mentions he used to have a "Flock of Seagulls" haircut. In a S10 flashback Chandler is seen with a "Flock of Seagulls" haircut.
** In The One with Phoebe's Ex Partner, when playing "Smelly Cat," Phoebe sings in the same way as the cover artist from her music video, shown in "The One Where Eddie Moves In."

** In the very first scene of the show, Chandler says that his mother never calls him. Few episodes later we find out that she's a famous writer and informs her son about upcoming visits through tv interviews.
** When Marcel the monkey is introduced in, he's sitting on Ross' neck and Chandler remarks "Hey, that monkey's got a Ross on his ass." Several seasons later, when Ross has a strange growth on his posterior region of which even the doctors don't know what it is, Joey suggests that it's something new that might be called for him as in "Poor guy, he's got a Ross."
** A Season 5 flashback reveals Chandler made fun of Monica when she was FormerlyFat. S6 has her saying he wouldn't date her if she was fat (an Alternate Universe episode proves her wrong) and S7 has her mentioning how he mocked her and him saying he's matured and will love her no matter what.

* ''{{Series/CSINY}}'':

-->'''Napoleon Solo''': Very ingenious. Am I to assume I'm in THRUSH Headquarters?
-->'''Oregano''': When we reach the 13th floor.
-->'''Napoleon Solo''': Mmm. That haberdashery shop...
-->'''Oregano''': What about it?
-->'''Napoleon Solo''': It's quite impressive. I wish U.N.C.L.E. could afford that.

--> '''Doggett''': You ever carry one of these?
--> '''Scully''': ...[[BlatantLies never.]]

--> '''Mike:''' Are you sure it'll do the job?
--> '''Jesse:''' Trust us.

** "[[Recap/InterviewWithTheVampire2022S1E2AfterThePhantomsOfYourFormerSelf ...After the Phantoms of Your Former Self]]": Finn O'Shea's arm is in a sling because Lestat de Lioncourt had injured it in [[Recap/InterviewWithTheVampire2022S1E1InThroesOfIncreasingWonder the series premiere]] after the former prevented the latter from harassing his boss Louis de Pointe du Lac in the funeral procession. Lestat smugly inquires, "Is it healing properly? You might need a proper doctor, my friend."

* ''Series/BeyondParadise2023'': Humphrey continues to jot down notes on scrap pieces of paper, just like he did in ''Series/DeathInParadise''. Lampshaded in episode two of the first season, when Esther buys him a notebook; although Humphrey uses it, he ends up ripping out the pages and rearranging them - because he finds it easier to work out the crime that way.

* ''Series/FawltyTowers'': Zig-zagged throughout the series. There are many [[CallBack small mentions of details from previous episodes]], and occasionally there is a CallForward to what might happen in a future episode. However, sometimes the layout of the hotel is inconsistent with previous episodes, especially in the bedroom numbering, and positions of upstairs rooms; "The Psychiatrist" features a broom cupboard not shown in other episodes.
** In "A Touch of Class", Basil speaks to the inept builder O'Reilly about the unfinished wall. The wall is still unfinished in the next episode, and O'Reilly appears in the episode.
** The lobby changes significantly in "The Builders", and this is consistent with the previous episode "A Touch of Class", and all future episodes. In "The Wedding Party", Basil refers to the recently made kitchen door.
** The timescales of the seasons being about three years apart is referred to. In "The Hotel Inspectors" from the first series, Basil implies that he and Sybil have been together for twelve years. In some episodes from series 2, such as "Waldorf Salad" and "The Anniversary", fifteen years is mentioned.
** In "The Builders", O'Reilly mentioning that Basil will have a stroke before he is fifty is a possible CallForward to [[spoiler: Basil being dragged away unconscious at the end of "Basil the Rat"]].
** In "The Germans", Manuel mishears "hammer" as "my hamster", possibly foreshadowing his pet hamster in "Basil the Rat".
** At the beginning of "Basil the Rat", Sybil rants about the mystery of their getting together, possibly in a reference to the previous episode "The Anniversary".
** In "Basil the Rat": When the Major says "vermin", Basil mishears this as him complaining about "Germans", in a reference to the Major expressing his dislike of Germans in the previous series.

!!The following have their own pages:

* ContinuityNod/ItsAlwaysSunnyInPhiladelphia

* In ''Series/ItsAlwaysSunnyInPhiladelphia'', in the episode "Paddy's Pub: Home of the Original Kitten Mittons," Dennis, Mac, and Frank make a marketing video for a marketing convention. At the end of the tape, it is shown that the video was taped over the old video of Dee catching fire while trying to rescue a box of kittens.
** For that matter, the gang keeps going to the same lawyer, to the point that he goes "Aw, no!" whenever he sees the gang in his office.
-->'''Lawyer:''' You do realize there are other lawyers in Philadelphia, right?

** "[[Recap/InterviewWithTheVampire2022S1E7TheThingLayStill The Thing Lay Still]]": Tom Anderson has an X-shaped scar on the left side of his face because Lestat had scratched it there with his vampire fingernail in the fifth episode when he [[TimeStandsStill stopped time]] at the speakeasy.

** In the second episode, Finn's arm is in a sling because Lestat had injured it in the series premiere after the former prevented the latter from harassing Louis in the funeral procession. Lestat smugly inquires, "Is it healing properly? You might need a proper doctor, my friend."
** In the seventh episode, Tom Anderson has an X-shaped scar on the left side of his face because Lestat had scratched it there with his vampire fingernail in the fifth episode when he [[TimeStandsStill stopped time]] at the speakeasy.

** George's victory in "The Contest" -- how long the group could go being without ADateWithRosiePalms -- is referenced several times. In "The Puffy Shirt", George is told that his chances as a hand model could be in danger if he is not "[[UnusualEuphemism master of his domain]]", to which he assures his patrons that "I won a contest." In "The Handicap Spot", George is seen reading a ''Glamour'' magazine at his parents' house -- his mother [[CaughtWithYourPantsDown catching him]] with it was the impetus for "The Contest". And in the final episode, with the plane crashing, George references "The Contest" [[spoiler:and admits he cheated]].

* ''Series/TheWalkingDead'' is particularly heavy regarding continuity, with items, situations and characters referenced long past their original appearances:

** The "Jack Sack," the FanNickname for Jack Bauer's messenger bag he carries in the later seasons. Despite Jack being kidnapped and tortured in the interim between seasons five and six, and moving from Los Angeles to Washington (and then to New York), the messenger bag pops up from time to time throughout the series when Jack is on missions, and conceivably [[BagOfHolding carries anything and everything]].

** Rick's "[[FanNickname Sheriff's Bag of Guns]]", which he picks up in the pilot episode from the King County Police Department, is later used as the plot device during the first-season episode "Vatos", where it is dropped and needs to be retrieved from the titular gang. In the second season, Rick leaves the bag in Hershel's house, and it is retrieved by Andrea in the second-season finale as she flees from the farm during a walker attack (and it subsequently saving her life, as she uses the various weapons still stashed in it to defend herself). When she and Michonne are brought by Merle to Woodbury in Season 3, it makes one more appearance in the Governor's apartment during "Say the Word". It's then referenced once more when Rick meets Morgan in "Clear" and mentions the bag of guns when he returns to King County.

** Mac keeps folders of unsolved cases on the corner of his desk. In Season 1, he tells Stella there are currently nine but that there used to be 12. In Season 2, he tells an employee he has to fire for tampering with evidence that he'll add the case at hand to the pile. Throughout the series run, the folders are seen there but not mentioned again until the season 7 finale, when he solves the last one and moves its folder to a cabinet.

** Mac keeps folders of unsolved cases on the corner of his desk. In Season 1, he tells Stella there are currently nine but that there used to be 12. In Season 2, he tells an employee he has to fire for tampering with evidence that he'll add the case at hand to the pile. Throughout the series run, the fo!ders are seen there but not mentioned again until the season 7 finale, when he solves the last one and moves its folder to a cabinet.

* ''{{Series/CSINY}}'': Mac keeps folders of unsolved cases on the corner of his desk. In Season 1, he tells Stella there are currently nine but that there used to be 12. In Season 2, he tells an employee he has to fire for tampering with evidence that he'll add the case at hand to the pile. Throughout the series run, the fo!ders are seen there but not mentioned again until the season 7 finale, when he solves the last one and moves its folder to a cabinet.
* In the third season ''Series/TheManFromUNCLE'' episode "The Hula Doll Affair", the entrance to THRUSH Headquarters in New York is an upper-class haberdashery, in contrast to the working-class Del Floria's Tailor Shop which serves as the entrance to U.N.C.L.E. Headquarters. Solo, as he is captured by Oregano (a THRUSH operative), remarks on the contrast:

* ''Series/RedDwarf'': In "Demons and Angels", whilst testing the food on the 'high' Red Dwarf, Lister refers back to several previous episodes: "I've been to a parallel universe, I've seen time running backwards, I've played pool with planets and I've given birth to twins, but I never thought I'd taste an edible Pot Noodle."
** Of course, he's also made disparaging references to Pot Noodles before - notably in "Marooned".

* ''Series/{{Scrubs}}'' had a huge example in the big MusicalEpisode. In Carla's song, "For the Last Time, I'm Dominican", she reprimands Turk for mistaking her for Puerto Rican and asks him questions about herself. These questions are all references to previous episodes.
** "Did I grow up in Illinois or was it Michigan?": In the episode "My Day Off", JD asks Carla something about her "homeland". She tells him she was born in Chicago.
** "How long before we met was I in medicine?": In the episode "My Nickname", Carla reveals she had been in medicine for nine years before this first season episode. Turk and Carla met in the first episode of the first season.
** "Was our wedding song the Beatles or Led Zeppelin?": In the episode "My Best Friend's Wedding", Ted and his acapella band, the Worthless Peons, sing the Beatles' "Eight Days a Week" at Carla and Turk's wedding.

* ''Series/ThatsSoRaven'' has the episode "Cake Fear", where Victor tells Raven and Cory that he's not leaving them alone, because the last time he did, the two threw a party with a mechanical bull, a reference to the previous episode "Hizzouse Party".

** In The One with Phoebe's Ex Partner, when playing "Smelly Cat", Phoebe sings in the same way as the cover artist from her music video, shown in The One Where Eddie Moves In.

** In the very first scene of the show, Chandler says that his mother never calls him. Few episodes later we find out that she's a famous writer and informs her son about upcoming visits through tv intervievs.

* Donna and Ringo's wedding in ''Series/{{Neighbours}}'' is accompanied by Sam Clark's cover of Angry Andereson's "Suddenly". Ringo tells him that Paul put him on to it, having heard it at his brother's wedding years ago. This was, in fact, the song played over Scott and Charlene's wedding in 1987.

** In one episode involving a man killed in a locked room, Scully examines a small ventilation grate, causing someone to ask "You don't think anyone could have squeezed through there, do you?". This is a reference to Eugene Victor Tooms, who killed people in locked rooms by doing just that in an earlier episode. The episode he first appeared in was even called 'Squeeze'.
** In the episode "The Field Where I Died", Scully tells Mulder that she wouldn't change a day of their time together - "Except for that Flukeman thing. I could have lived without that just fine." The Flukeman was a well known monster of the week from season two.
** In "Pusher", the Flukeman appears on a magazine cover in the teaser.

** In "Patience", one of the first episodes of season 8, where Scully works with new agent John Doggett, they go into a dark attic. Doggett produces a flashlight...

** In "Clyde Bruckman's Final Repose", a PhonyPsychic or NotSoPhonyPsychic called Stupendous Yappi is introduced. His photo is occasionally seen in the newspapers later on, e.g. in 'Pusher' or 'Small Potatoes'.
** At the end of "Fallen Angel", Mulder picks up Max Fennig's baseball cap. It hangs on a coat-stand in Mulder's office in 'E.B.E'.

* "Tony's mug" in ''Series/TwentyFour''. In the first season, Tony Almeida is often seen drinking from a mug with a Chicago Cubs logo on the side. It appeared infrequently throughout the first three seasons, and even had a bizarre online fan following. Following Tony's return in season 4, it's revealed that the mug is one of the few things he still has from CTU (used for comedy purposes; he drinks beer from it). The fifth season takes this a step farther and references the mug again when it's smashed after [[spoiler:the car bomb explodes near Tony's window]].
** The "Jack Sack", the FanNickname for Jack Bauer's messenger bag he carries in the later seasons. Despite Jack being kidnapped and tortured in the interim between seasons five and six, and moving from Los Angeles to Washington (and then to New York), the messenger bag pops up from time to time throughout the series when Jack is on missions, and conceivably [[BagOfHolding carries anything and everything]].

* ''Series/TheWaltons'': In an episode Jim Bob thinks he's adopted because he doesn't resemble other Waltons physically. Elizabeth conducts a school poll asking students whom they think Jim Bob resembles. One student's answer was, "a turtle". Much later in the series, the Walton boys are dressing for an event, and while Ben and Jim Bob are looking in the mirror, Ben ribs Jim-Bob by snarking, "Elizabeth's right. You do look like a turtle!"

** In "Morality Bites" the spell to go to the future [[ItOnlyWorksOnce can only be used once]]. Later on in "Chris Crossed" (four seasons later) Chris says that there is no spell to send someone forward in time (the sisters had already used it so it had disappeared from the Book of Shadows).

* In ''Series/TorchwoodMiracleDay'' Jack at one point introduces himself as Dr. Owen Harper. Owen was killed in "End of Days". He was also a doctor before he joined Torchwood.

** In Season 1, it was mentioned on occasion that Mike Logan's mother was physically abusive. When the character was brought back (after a ten-year absence) for ''Series/LawAndOrderCriminalIntent'', his first episode as a main cast member referenced this background and even made it relevant to the case.

** In an early episode of ''Series/LawAndOrderSpecialVictimsUnit'', the unit takes on a case against a very powerful political family, and could be disastrous if they're wrong. Cragen quips that, "I heard Logan's learning to love Staten Island." In his final appearance on the show, Logan had been [[ReassignedToAntarctica transferred to Staten Island]] after getting in hot water of his own.

** In Season 1, it was mentioned on occasion that Mike Logan's mother was physically abusive. When the character was brought back (after a ten-year absence) for ''Series/LawAndOrderCriminalIntent'', one of his first

** In ''Series/StarTrekDeepSpaceNine'', Worf hears that Keiko is having a baby and runs ''far'' away from the scene (as in, goes to visit his adoptive parents on Earth). This is because the last time Keiko was pregnant on ''The Next Generation'', Worf helped with the delivery, and it didn't go too well.