* CrowningMusicOfAwesome: The theme song ([[ReplacedTheThemeTune actually the show's second theme song]]) written by Bill Conti. Dig those saxes!
* HarsherInHindsight: The episode where Creator/JudithBarsi plays an abuse victim, becomes this after her murder at the hands of her abusive father.
* HoYay: The major reason for the ExecutiveMeddling to replace Meg Foster with Sharon Gless. Meg was seen as very "butch" as was Tyne Daly. They were, "Too tough, too hard and not feminine. We perceived them as dykes." So Foster was replaced with the more traditionally feminine Gless; it didn't destroy the illusion. Cagney and Lacey had and continues to have a huge lesbian following. Buth stars frequently fielded questions about their sexuality during the show's run, and for many years thereafter.
* RetroactiveRecognition:
** Hm. So that's why [[Series/BurnNotice Mama Westen]] is so badass.
** 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!
* SavedByTheFans: A letter-writing campaign resurrected the show from a 1983 cancellation.
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