Wikipedia's info on "Powerhouse":
Powerhouse (instrumental) - Wikipedia, the free encyclopedia (
http://en.wikipedia.org/wiki/Powerhouse_(instrumental)#Use_in_cartoons)
Spoiler-tagged for length
The first use of "Powerhouse" in a cartoon occurred in the 1943 Warner Bros. Looney Tunes short Porky Pig's Feat, directed by Frank Tashlin. Also in 1943, it was used in the Private Snafu shorts Gripes, Spies, and Rumors. It was subsequently featured in over 40 other Warner Bros. cartoons. The most well-known "assembly-line" usage of "Powerhouse B" occurs in Bob Clampett's Baby Bottleneck (1946), in which newborn babies (of various species) are processed on a conveyor belt in time to the melody.
The "Powerhouse A" section featured prominently during Bugs Bunny's altercation with a gremlin in Clampett's 1943 Merrie Melodies cartoon Falling Hare. The 1953 Merrie Melodies cartoon Duck Dodgers in the 24�th Century, directed by Chuck Jones, contains Stalling's lengthiest adaptation of the "Powerhouse A" section, clocking in at one minute and twenty-five seconds.
Other Warner cartoons which contain quotes from "Powerhouse" include Birdy and the Beast (1944), Cat-Tails for Two (1953), Early to Bet (1951), Falling Hare (1943), His Bitter Half (1950), House-Hunting Mice (1948), It's Hummer Time (1950), Jumpin' Jupiter (1955), Rocket Squad (1956), Sheep in the Deep (1962), Compressed Hare (1961), and dozens more.
In the 1960s, producer Hal Seeger and composer/arranger Winston Sharples adapted "Powerhouse" and other Scott compositions in dozens of episodes of their Batfink cartoon series.
The original Raymond Scott Quintette recordings, including "Powerhouse," were licensed in the early 1990s for soundtrack usage in twelve episodes of The Ren and Stimpy Show. Various passages of the tune have been arranged for use in The Simpsons, Duckman, The Bernie Mac Show, and The Drew Carey Show (in a brief scene involving an animated character). An entire 1993 episode of Animaniacs, "Toy Shop Terror," was set to Warner Bros. music director Richard Stone's arrangement of the composition. "Powerhouse" also served as bumper theme music for the Cartoon Network from 1997 to 2002, and can be heard as a systematic rock theme in the 2003 feature film Looney Tunes: Back in Action.
"Powerhouse" has been used In The Simpsons four times. The first occurs in ""And Maggie Makes Three" (Season 6, Episode 13) during a scene at a bowling alley. In the episode "Bart Has Two Mommies" (Season 17, Episode 14), "Powerhouse" B is adapted in a scene that pays homage to the 1937 Disney short, The Old Mill, when Homer Simpson gets caught in the Old Mill while trying to save his Rubber Duckie. In the episode "Little Big Girl" (Season 18, Episode 12), "Powerhouse" was used during the sequence where the fire at Cletus' farm is lit. In the episode "The Fool Monty" (Season 22, Episode 6), "Powerhouse" was adapted as background music for a construction scene in which Charles Montgomery Burns, having lost his memory, is led to a dangerous construction site by Homer Simpson, who is seeks revenge for Burns' years of cruel behavior. Burns walks along moving girders, narrowly avoids flying rivets, and other well-worn cartoon construction site gags. Simpsons creator Matt Groening once ranked "Powerhouse" as #14 on a list of his "100 Favorite Things."
"Powerhouse" was adapted without attribution by composer James Horner in the soundtrack of the 1989 film Honey, I Shrunk the Kids. The Horner composition, titled "Power Play," resulted in legal action by Scott's U.S. publisher, Music Sales Corporation, against Walt Disney Pictures for failure to credit the work's original composer. The dispute was ultimately settled out of court.
This wikipedia entry about Horner's music is slightly incorrect, because "Powerplay" is song used in the movie and is shown in the end credits and has nothing to do with the score, and in all these years no one has ever shown any proof of the lawsuit beyond a nasty mention of it on the Raymond Scott website.