* BellisariosMaxim: While the show is the trope namer, there's probably no better explanation than the Maxim for why Al is occasionally able to do things he really shouldn't be able to as a hologram (things like riding in a car or walking up stairs).
* CrowningMusicOfAwesome: The show's Theme song.
* DryDocking: Sam did not have a wife waiting for him in the event that he ever returned home. [[FanonDiscontinuity No, he didn't!]]
* FanonDiscontinuity: The ExecutiveMeddling-born ending.
** "[[ExactWords Sam Becket (sic) never made it home"]]. I don't know who ''he'' is, Sam ''Beckett'' did!
* GermansLoveDavidHasselhoff: The series was very popular in Mexico, partly due to the premise and also because of the [[SuperlativeDubbing really good voice acting of the Mexican dub]].
* HarsherInHindsight: In "Permanent Wave," Sam has to save a boy that witnessed a man being shot to death in a matter involving drugs. The character's name was Phil Hartman. It wasn't too many years later when actor Phil Hartman was himself shot to death by his wife, who had a drug problem.
** In "Jimmy," Sam and Al both freely use the word "retarded" to describe the titular leapee, who appears to have Down Syndrome.
* HilariousInHindsight: Weathers Farrington's (played by J.G. Hertzler) contemptuous "''What do you'' know of honor Dumont" is ''absolutely'' hilarious when you know that he went on to play the Klingon general Martok in ''Series/StarTrekDeepSpaceNine.''
** Doubly funny as he's saying this to Sam. A few years after ''Series/StarTrekDeepSpaceNine'' ended, Hertzler appeared in the ''Series/StarTrekEnterprise'' episode "Judgment," where his character and Archer discussed honor and Archer helped him rediscover his own sense of honor.
** In "All Americans", Al mentions that he's watching Super Bowl XXX and that the Pittsburgh Steelers are trailing by three points. Jump head six years to the real Super Bowl XXX, where the Steelers ''were'' playing and ''did'' trail by three points until a miraculous comeback in the final minutes.
* ItWasHisSled: ''Al'' being the one that Beth leaves for another man in "M.I.A.". It's such common knowledge among fans that you'd forget that the way the episode is structured, it's supposed to be a twist - with Sam stumbling upon a picture of young Al in Beth's home about halfway through.
** Actually, the audience is informed of this before Sam is with Beth introducing herself to Dirk as Beth Calavicci early on.
* MartyStu: Sometimes Sam's absolute purity of heart and expert knowledge in everything from music to martial arts to several branches of science put him into this category.
** Then at times he's more an EscapistCharacter.
* {{Narm}}: When Lee Harvey Oswald sees his face in the Waiting Room (actually Sam's face), he understandably [[FreakOut freaks out]]... but we cut to Sam, mouth open, with Oswald's slightly-deadpan scream pouring out.
* RetroactiveRecognition: The youngest daughter in "Another Mother" (and Bellisario's real-life daughter) later became [[PrettyLittleLiars Spencer Hastings]].
* TheyChangedItNowItSucks: On the DVD releases, a large number of the original songs were changed for copyright reasons (the songs were usually [[NothingButHits well known songs from the time period that a particular episode is set it]]), which caused a HUGE backlash from fans. In particular, the last episode of the second season, "M.I.A.", removed Ray Charles' "Georgia On My Mind" with some generic muzak, ruining what many thought was the best moment of the entire series (Al, in hologram form, dancing with his first wife who left him while he was a POW in Vietnam). This is definitely a instance in which TropesAreNotBad.
** The Season 5 theme song, meanwhile, wasn't very well-received by fans.
* TheWoobie: Sam and Al so much.