|A haunting need for images|
Needed: Infobox. (It shouldn't simply be of the monster.)
In Washington, D.C., the gang get locked up in the Splitsonian Institute for the night. This institute is chock full of antiques, inventions, and the ghosts of Benedict Arnold, William Demont, and Major Andre.
When the gang visit the Splitsonian Institute in Washington, D.C., they get locked in and are trapped over night since they museum has a time lock. While they are there, they encounter Mr. Clive, a cheery watchman, Mr. Wilit, the engineer, and a security guard that Shaggy nicknames "grumpy old grumper." They decide to look around when they begin to notice strange happenings, such as a locomotive steam engine that starts up every few minutes. While they are looking around, some of the mannequins begin to move. The gang is then chased by the ghosts of Benedict Arnold, William Dumont, and Major John Andre. They manage to escape them and search for clues.
They follow wet footprints to a dead end in the wall. Then they search the basement, where they find an old cotton gin that begins to turn on. They can also hear the automated train going off upstairs at the same time. Velma inspects the cotton gin, and notices several of the parts of it are newer the the rest. They follow the belts of the cotton gin, as well as wet footprints to the end of the wall. Scooby switches a lever that flips a hidden switch, allowing the wall to turn. The gang follows a flooded cavern to a concrete wall with a huge hole drilled in it by a machine. They discover huge bags of money there. On the other side of the wall, there are dozens of printing presses. The gang catches the three ghosts after Scooby traps them with one of the antique planes.
They unmasked the Ghost of Major Andre, who is an accomplice. Then they unmask the Ghost of William Demont, who is Mr. Wilit, the city engineer. Finally, Shaggy addresses the Ghost of Benedict Arnold as "grumpy old grumper", and tells him that the jig is up. However, when he unmasks the ghost it is not him, but the cheery Mr. Clive.
A government agent shows up to arrest them. The gang explains that they were trying to dig through the wall in the museum to reach the money inside of it. However, the agent explains that all of their efforts were in waste, as the money is worthless.
- Mr. Grumper (single appearance)
- Spirits of '76 (single appearance)(disguise)
- Government agent (single appearance)
- The Mystery Machine
|Mr. Grumper||His suspicious manner, as well as his wet shoes.|
|Mr. Wilit||He said he was sleeping inside the museum. He also left wet footprints behind just like grumpy old Grumper.|
| Mr. Clive as the Ghost of Benedict Arnold|
Mr. Wilit as the Ghost of William Demont
Their henchman as the Ghost of Major Andre
|To steal money from the mint.|
The following credits reflect closely as possible to how they are seen on-screen.
- Executive Producers: Joseph Barbera and William Hanna
- Director: Charles A. Nichols
- Creative Producer: Iwao Takamoto
- Associate Producer: Alex Lovy
- Storyboard Direction: Jan Green, Cullen Houghtaling, Don Sheppard, Paul Sommer
- Recording Director: Alex Lovy
- Story Editor: Ray Parker
- Story: Larz Bourne, Haskell Barkin, Dick Conway, Tom Dagenais, Willie Gilbert, Tony DiMarco, Duane Poole, Dave Ketchum, Norman Maurer, Dick Robbins, Dalton Sandifer
- Voices: Bob Holt, Allan Melvin, Casey Kasem, Don Messick, Pat Stevens, Janet Waldo, Mickey Dolenz, Linda Hutson, Virginia Gregg, Hettie Lyn Hurtes, Shirley Mitchell, Heather North, Alan Oppenheimer, John Stephenson, Lennie Weinrib, Frank Welker
- Production Design: Bob Singer
- Character Design: Alex Toth
- Production Supervisor: Victor O. Schipek
- Graphics: Iraj Paran
- Musical Director: Hoyt Curtin
- Musical Direction: Paul DeKorte
- Layout: Mike Arens, Hak Ficq, Jack Huber, Ray Jacobs, Tony Rivera, Jim Mueller, Tony Sgroi, Terry Slade, Owen Fitzgerald, C.L. Hartman, Alex Ignatiev, Ziggy Jablecki, Homer Jonas, Warren Marshall, Steve Nakagawa, Bob Singer, Linda Rowley, Adam Szwejkowski, Wendell Washer, Al Wilson, George Wheeler
- Unit Director: Bill Keil
- Animation: Ed Barge, Bob Goe, Bill Hutten, Tony Love, O.E. Callahan, Lars Calonius, Rudy Cataldi, Steve Clark, Hugh Fraser, Bob Hathcock, Jerry Hathcock, Volus Jones, Ken Muse, Rod Parkes, Veve Risto, Jay Sarbry, Xenia, Margaret Nichols, Don Patterson, Morey Reden, Ed Soloman, Ken Southworth, Dave Tendlar, Dick Thompson, Carlo Vinci, Russ Von Neida
- Backgrounds: Fernando Arce, Dennis Durrell, Al Gmuer, Richard Khim, Fernando Montealegre, Marilyn Shimokocki, Dennis Venizelos
- Technical Supervisor: Frank Paiker
- Checking and Scene Planning: Evelyn Sherwood
- Ink and Paint Supervisor: Billie Kerns
- Xerography: Star Wirth
- Sound Direction: Richard Olson, Bill Getty
- Supervising Film Editors: Chip Yaras
- Music Editors: Larry Cowan, Pat Foley, Joe Sandusky
- Effects Editors: Richard Allen, Tom Gleason, Terry Moore
- Negative Consultant: William E. DeBoer
- Post Production Supervisor: Joed Eaton
- Camera: George Epperson, Curt Hall, Ron Jackson, Norman Stainback, Roy Wade
- Production Manager: Jayne Barbera
- A Hanna-Barbera Production
- © 1976 Hanna-Barbera Productions, Inc.
- RCA Sound Recording
- Hanna-Barbera Productions, Inc.
- This is the last new Scooby episode of The Scooby-Doo/Dynomutt Hour; however, new episodes would air continue under the Scooby's All Star Laff-a-Lympics banner, and later repackaged episodes of The Scooby-Doo Show, thus being the season one finale of that aformentioned series.
- The title of the episode and the name of the group of monsters are references to the year it was aired, which is a rare occurence.
- The "Splitstonian" Institution is a parody of the Smithsonian Institution, a group of museums, and research centers, established in 1846, and administered by the U.S. government. Its headquarters is located in Washington, D.C..
- The United States Mint is located a little over a mile north of the Smithsonian Institution.
- Benedict Arnold was a general who changed sides in 1779, and opened secret negotiations with the British to hand over West Point. Major John Andre was a British spy (therefore not an American traitor) who was carrying plans of Arnold's plot to the British when he was captured and hanged in 1780. William Demont was an adjutant (assistant officer) to Colonel Robert Magaw during the Battle of Fort Washington in 1776. Demont switched sides, and joined the British.
Animation mistakes and/or technical glitches
- None known.
Inconsistencies/continuity errors and/or goofs/oddities
- Several times there are impossible scenes. William Demont is shown watching when the gang talks to Mr. Wilit. Role-trading among the culprits could explain that, but once Mr. Clive is in front of all three figures and then they move immediately after he leaves the room.
- Just like the plane in the Scooby-Doo, Where Are You! episode, What a Night for a Knight, how is it possible for vehicles in a museum to have enough fuel (or steam) to operate?
In other languages
|French||Esprit, Es-Tu Là?||Spirit, Are You There?|
- The Scooby-Doo!/Dynomutt Hour: The Complete Series DVD set released by Warner Home Video on March 7, 2006.
- Scooby-Doo! 13 Spooky Tales Around the World DVD set released by Warner Home Video on May 15, 2012.
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|The Ghost of the Bad Humor Man|| The Scooby-Doo Show|
|The Curse of the Viking Lake|