* AdaptationDisplacement: Most people tend to think of the TV version first.
* AwesomeMusic:
** When Roy Clark guest-starred, the episode's tag featured him performing his signature piece "Malaguena". The audience, Tony Randall and Jack Klugman were all blown away by the performance.
** Some top-tier American opera singers - [[http://en.wikipedia.org/wiki/Marilyn_Horne Marilyn Horne]], [[http://en.wikipedia.org/wiki/Martina_Arroyo Martina Arroyo]], [[http://en.wikipedia.org/wiki/Richard_Fredricks Richard Fredricks]] - appeared on the show and got a chance to strut their vocal stuff.
* EarWorm:
** Just try to get that Neal Hefti theme out of your head. Fittingly, Jack Klugman loved the theme tune, but Tony Randall hated it.
** "Happy and peppy and bursting with love!" It takes a little effort to get all the right words in the right places, but the tune is incredibly catchy.
** "A Different Drummer" reintroduced "Stumbling (All Around)", which started its ear wormy existence way back in 1922.
* FunnyAneurysmMoment: In one episode from the series, Oscar is hospitalized for an impending throat surgery, and of course, Felix pesters him to no end -- even the surgeon and Oscar's fellow patient get fed up with him and all want nothing more than for him to leave Oscar alone (even after Oscar returns home, the doctor wants Felix to just leave him the hell alone). Years later when Jack Klugman was hospitalized for throat surgery, the first person to come to his side was his dear friend Tony Randall.
* HilariousInHindsight:
** The ''movie'' could have starred Tony Randall and Jack Klugman.
** In "The Pen Is Mightier," after hearing Felix's poem "Ode To A Skyscraper," Oscar begs the question "Who's going to read a poem about the 40th floor except a sensitive window washer??" Twenty years later, Music/BarenakedLadies recorded "When I Fall," a song about a sensitive window washer. (No mention of the 40th floor, though)
* HoYay: And not just to modern eyes: Many a joke has been told about the peculiar nature of Oscar and Felix's relationship over the years. Creator/{{ABC}} was nervous about any such implications, which led Randall and Klugman to playfully film extra scenes with the HoYay dialed UpToEleven, just to give the censors fits.
* InformedWrongness: In "You've Come a Long Way, Baby," Oscar is treated like a complete heel (by Felix, his girlfriend Nancy, and the background music) for wanting to call the police and report a baby that was left behind by his mother at Felix's office several hours before.
* JerkWoobie: Felix. He is the show's ButtMonkey, but others' frustration with him is often justified.
* RecycledScript: ''The New Odd Couple'' reused 8 scripts from the original.
* ValuesDissonance: "The Pig Who Came to Dinner" featured a guest appearance by Bobby Riggs in which he played up his misogynistic public image. If similar statements had been made about blacks, for example, they would ''never'' have been tolerated, but women were apparently AcceptableTargets and Riggs' bigotry was largely played for laughs.
* TheWoobie: Felix, to those fans who don't find him nearly as irritating as Oscar does. After all, he always means well. Sure, [[WellIntentionedExtremist he gets a little carried away sometimes]], but sometimes the others overreact.
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