The largo from Dvoraks New World symphony will always be associated
with Hovis bread in the UK.
and Bach’s Air on thee G string will always be associated with Hamlet cigars.
I really like Ludwig Von Drake’s little education cartoons, why dont you like them? Oh. 
It has branched out into other similar comedy… In fact, I have heard/read “Set that to Yakety Sax and it is comedy genius”.
For some odd reason I associate it with Southwest Airlines 
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When the last movement of Dvorak’s “New World” Symphony starts, it’s hard not to think of “Jaws”:
Does Japanese count as normal? This is how I associate that song more than 2001, anyway.
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I think for a generation of TV watchers, Yankee Doodle and This Old Man are Barney songs.
That is true, but gladiators and their blood-soaked arenas are in fact closely related to clowns and circuses. I feel the song fits both contexts well.
Or if you’re a wrestling fan, you might thing of Der Ring-General, WALTER.
I feel a closer connection might be The Rite of Spring:
Changing tack entirely… I had forgotten about this:
This wonderful thread is full of classical (etc.) music mentally altered by associations with films, commercials, etc…but ruined? To me, only one composer could do that…P. D. Q. Bach!
Examples are numerous. There’s a passage in Handel’s Messiah (can’t recall which at the moment) that I can no longer here without a chuckle.
Here’s a great example: at 8:25 in the video below (in “Concerto for Horn and Hardart.”) Could a Doper help identify the piece that’s being parodied? It sounds like the slow movement from some Mozart symphony, perhaps? (Not the one mentioned in the Wikipedia article). In PDQ’s version, the tune is left hanging – it never resolves to its expected cadence.
Somewhere on YouTube, there is a video of the song.
One of the comments on the page is “Either gladiators are a lot swishier than I thought, or clowns are a lot more butch than I thought.”
Oh, I know. I’m just saying that it’s a fairly classic movie song, and it’s been co-opted by those Modelo commercials.
In the comments section under the Sicilienne by Gabriel Fauré, somebody was compelled to post, basically “hur-hur, that’s the Harry Potter theme.”
I really hate the “Cerulean Blue” monologue from the Devil Wears Prada, which asserts that us normies are not unequipped but completely unqualified to make choices, any more than raccoons scavenging dumpsters. Especially since our betters also claim that beyond taste to morality and conviction. Still, stupidity is a value system of joy.
When the Phoenix Symphony did a showing of the film, with the orchestra doing the music, the audience cheered at the Fox Fanfare! Fun Fact: it was written by Alfred Newman, and is his most-used composition
Not only did it not ruin it for me, but I cut the audio clip of Walken saying “I got a fever! And the only prescription is…MORE COWBELL!” and grafted it before the song.
And sports! Rollerball!
True, but it doesn’t ruin it as music, at least not for me. Of course, you never even hear all of the Toccata let alone any of the Fugue.
Similarly with Ponchielli’s Dance of the Hours from the OP. I don’t think the visuals from Fantasia ruins this as music, because it is performed faithfully, if I recall correctly. Allan Sherman disembowels it.
There are some Rossini overtures I cannot hear without hearing Bugs Bunny’s voice; also Brahms Hungarian Rhapsody #2 with Bugs (I think) on the keyboard. I loved those cartoons as a kid, and they really were my introduction to classical music. But enough already, memory, let them go.
Then there are the crap pop songs made out of romantic piano concertos – “Tonight We Love” from Tchaikovsky’s 1st, and “Full Moon and Empty Arms” (blech) from Rachmaninoff’s 2nd.
Prokofiev’s Symphony 1 (“Classical”) second movement?
Oops no, Mozart Piano Concerto 21 slow movement used in the movie “Elvira Madigan”
Come to think of it, the pizzicato obligato sounds a bit like a nod to Haydn’s Clock Symphony too. Quite a mash-up.
That’s it! Thanks.