* HeyItsThatGuy
** One of the other detectives in the precinct runs a [[Film/TheKarateKid karate dojo]] where he tells his students "Mercy is for the weak."
** [[Creator/CarlLumbly His partner]] also helped [[Series/{{Alias}} Sydney Bristow]].
** In addition, the precinct's desk sergeant is [[Film/{{Meatballs}} Tripper Harrison's]] boss.
** This also applies to people working off camera as well. Series producer Terry Louise Fisher later went on to co-create ''Series/LALaw'' alongside Creator/StevenBochco.
** DaChief is the ''KingOfKensington''.
** [[Series/WelcomeBackKotter Juan Epstein]] is a cop!
* MissingEpisode: When reruning ''Cagney & Lacey'', Lifetime omitted the first season episodes featuring Meg Foster as Cagney. The DVD release does likewise, labeling the second season (featuring Sharon Gless as Cagney) as the the first season.
* TheOtherDarrin: Loretta Swit played Cagney in the MadeForTVMovie, but wasn't available for the series. Meg Foster played her for the first season before being replace by Sharon Gless, who played her for the rest of the run.
* UnCanceled: A letter-writing campaign resurrected the show from a 1983 cancellation.
* UnintentionalPeriodPiece:
** What we see as regards gender roles (i.e. women being accepted in a traditionally male occupation, but only recently and with occasional misgivings), TheBigRottenApple nature of the New York setting, occasional examples of EightiesHair and fashions, the presence of typewriters and rotary dial phones in the squadroom, etc. date the show to the period it's made.
** Also in comeback feature ''Cagney And Lacey: The Return'' (set in the '90s) has Mary-Beth Lacey trying to find another job (having since retired from the force) when Harvey takes ill and can no longer work; as she doesn't want to return to police-type work[[note]]such as working for Christine Cagney, now investigator for the D.A.[[/note]] a lot of the jobs she tries for are clerical/secretarial work, but she fails at interviews due to lack of computer skills (she's typed plenty of reports, but only on a typewriter). Computers at this point were just becoming ubiquitous and it was still possible to be out of work for just a few years and never have come into regular contact with one.
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