Dr. Seuss on the Loose (titled Green Eggs and Ham and Other Stories for the sing-along videocassette release) is an animated musical television special, cartoon first airing on CBS on October 15, 1973, and hosted by The Cat in the Hat who appears in bridging sequences where he introduced animated adaptations of Dr. Seuss children's stories The Sneetches, The Zax and Green Eggs and Ham. The first two stories were based on the first two segments of The Sneetches and Other Stories, while the third was based on a standalone book. Allan Sherman reprised his role as the voice of The Cat in the Hat from the 1971 TV special. This was the final project Sherman worked on before his death on November 20, 1973, barely a month after the original airing. On June 26, 2012, Warner Home Video released the special on a special edition DVD and Blu-ray.
- Allan Sherman – The Cat in the Hat
- Hans Conried – Narrator, North-going Zax, South-going Zax, Fox
- Paul Winchell – Sam-I-Am, Guy-Am-I, and some of the Sneetches
- Bob Holt – Sylvester McMonkey McBean and other Sneetches
- Oh, at the Adge of Each Ocean
- A Toast to Your Bellied Star
- Twink Twink Twinkle Twinkle Lovely Little Star
- We've got Stars up on Thars!
- Abdominal Stars
- Oh, Beyond the Last Mountain
- Opening to Green Eggs and Ham
- He doesn't like Green Eggs and Ham
- He will eat them Anywhere
- This is the only Dr. Seuss special to have three stories instead of just one-full length story. Green Eggs and Ham is meant to be the main part of the special, but as the book was short and did not have enough plot to fill out a 24-minute cartoon special, two other stories which are The Sneetches and The Zax from The Sneetches and Other Stories were added in as additional segments to fill out the run time. However, for some reason, Green Eggs and Ham played last after those two stories.
- Of the three segments, The Sneetches took up the longest runtime of the special, making The Zax have the shortest runtime and then Green Eggs and Ham gets the second-longest runtime.
- This is the last Dr. Seuss special until The Butter Battle Book to be based on any of Geisel's books.
- The laugh Guy has near the end of the special is the same laugh Paul Winchell used for Tigger from the Winnie the Pooh series.
- This special uses a custom "A Cat in the Hat Presentation" logo animated from scratch instead of the usual kind from the other specials. However, it does not have the "A Cat in the Hat Presentation" text as the yellow circle border is thinner, and even the end credits use the same logo from the beginning of the special.
- On all VHS releases and the laserdisc prior to the 2003 re-release, numerous edits were made.
- On the Sing-Along Classics release and the 1998 VHS reprint, the opening title sequence has the title card edited: The video title "Green Eggs & Ham and Other Stories" is plastered over the original title "Dr. Seuss on the Loose". The Playhouse Video VHS release however keeps the original title card intact.
- During the Star-Off Machine sequence, a couple of shots where the machine makes a Sneetch look hairy/skinny and then the Sneetch gets pushed among colored windows in the dark were cut, most likely due to being frightening for children.
- The scene where the daytime/sunset/night/sunrise/daytime cycle and the hurricane thunderstorm while the Zax were standing still was cut.
- On the laserdisc release, the Dr. Seuss on the Loose opening title sequence was cut and replaced with the "A Cat in the Hat Presentation" logo from the previous special, and Green Eggs and Ham was also positioned as the first segment before The Sneetches and The Zax.
- This is the only Dr. Seuss special to have been left unedited in its BFA edition, while the BFA opening/closing logos were added separately instead of being plastered over the DFE logo.
- An eBay auction for a production cel of The Zax states that Chuck Jones worked on the special, which is false because Chuck Jones didn't work on anymore specials after The Cat in the Hat.
Differences from the Book(s)
- Sylvester McMonkey McBean's truck is redesigned and larger in size in this special. Originally, in the book, the front of his truck is stylized like a motorcycle, while the back of the truck was a cargo box with the machinery/equipment stored visibly in a pile, plus all the cash he carried with him were also piled on the back of the truckload, with a money bag also hanging on the machines. In the cartoon, the front of the truck he drives now has a roof console, while all the Star-On/Off machinery/equipment and money were completely stored inside the truckload, and the side of his car also has the "Sylvester McMonkey McBean" brand label removed.
- The Star-On and Star-Off machines were redesigned and looked different in the cartoon than in the book.
- In the book, the Star-On machine was a simplistic machine and yellow in color. In the cartoon, it was redesigned as a more complex machine and is red in color.
- In the book, the Star-Off machine was a simplistic machine and red in color. In the cartoon, it was redesigned as a more complex machine and is green in color.
- In the book, the Star-On machine was positioned to the left, while the Star-Off machine was positioned to the right. In the cartoon, the left/right positions of the two machines were reversed – the Star-On machine was positioned to the right, while the Star-Off machine was positioned to the left.
- During the scene where the Star-Belly Sneetches say, "We're still the best Sneetches and they are the worst," the Sneetches hold a protest ceremony inside a cave, individually from the other group of Sneetches. This does not happen in the book, as they still confront the other Sneetches during that line.
- At the end of the cartoon, the Sneetches hold a marshmallow toast party again during the day. This does not happen in the book.
- In the cartoon, while the Zax had been standing still, several cutaways were written in: a daytime/sunset/night/sunrise/daytime cycle, a hurricane thunderstorm and rain, winter, and spring were added before the part where a town was built around the Zax.
Green Eggs & Ham
- In the book, Sam riding a dog and a tiger was seen coming out from around the hallway, but in the cartoon, he was seen entering in and out of empty doorways.
- In the book, Sam used a fishing rod-like toy with a mechanical glove hand to send the platter of green eggs and ham to Guy from the distance. In the cartoon, he simply pops up from behind Guy's chair to offer him green eggs and ham.
- In the book, Sam and Guy are inside while Sam uses a couple of hand rods to point "here" and "there". In the special, Guy simply leaves his home before this, and Sam pops up from a trapdoor beneath the grass. For "here", Sam simply points his finger on the ground, and for "there", he uses a measure tape-like device that reels out a mechanical hand that runs its fingers all the way far out behind Guy.
- In the book, Sam and the mouse interact with Guy from the house window. In the cartoon, Guy opens the front door to a house before encountering Sam and the mouse.
- Also in the cartoon, Guy actually slams the house door when he says "I do not like them in a house." Additionally, he does not say his following two lines after he runs off saying "I do not like them anywhere!"
- In the book, when Sam and the fox interact with Guy from a box, the box they are standing in is hanging from a tree branch. In the cartoon, the box falls from above and sits on the ground.
- In the cartoon, Guy says "No" three times before explaining where he does not want to eat the green eggs and ham – during his encounter with a fox in the box, while in the train, and in the dark. He doesn't say that word in the book.
- Additionally at one point after the fox is chased away by Dalmations and hunters, Guy also yeuchs at the green eggs and ham when Sam shoves them up to his face (shortly before he heads off and then gets rammed by the car) – which he also doesn't do in the book.
- In the cartoon – all of the following which is not in the book, after Guy says "No, not in a box, not with a fox...", the fox runs for his life and gets chased by a bunch of Dalmatians and also a couple of horse-riding hunters. This happens three more times in the special whenever Guy says anything about eating with a fox, after Guy opens a door to another passenger car in the train, after Guy halts his handcar before a railroad signal (the only time this happens when he didn't mention it), and while Guy sings to Sam about finally accepting to eat the green eggs and ham. Additionally, the fox and the Dalmatians, along with the goat and the mouse, also sing as a group choir to finish off the ending song before Guy says "I do so like green eggs and ham. Thank you, thank you, Sam-I-Am."
- All the animals were riding with Sam in his car in the book, but not in the cartoon. In the cartoon, each animal appears individually and only appears in a group with the Dalmatians near the end.
- In the book, the grass changes from white to red to yellow at times, but in the cartoon, it remains green throughout.
- In the book, Sam was driving the car in a right direction. In the cartoon, he drives it to the left, followed by multiple cutaways where he is driving the car across multiple hills, then it heads right when approaching the tree.
- In the book, the tree was colored yellow, but in the cartoon, it was colored reddish-magenta.
- In the cartoon, when the car landed in the tree, Sam ducks inside the car for some reason, then pops back out of it when suggesting to Guy that he may like the green eggs and ham in a tree. Guy also peers down and shocked when he is on the edge of the car and the tree. They don't do this in the book, as Guy continues to argue with Sam even after the car got stuck in the tree.
- The train as seen in the book was a rather simplistic-looking train with only one passenger car hooked to it. The engineer was more of a who-like creature and two parents and their child were seen sitting in the passenger car. In the cartoon, the train was slightly redesigned with a steam dome added before the smokestack, a coal cart attached to the back of the train, and the passenger car placed behind the coal cart – with two extra passenger cars attached. The engineer also has a more human-like design and the parents and their child were not present, as the passenger cars almost look like they are empty with no passengers.
- In the book, Sam and Guy are still physically visible in the dark. In the cartoon, only their eyes can be seen in the dark.
- In the book, the car falls off the tree and stays on top of the train's passenger car as Sam and Guy go on a long train voyage. Eventually, the train runs off a poorly designed railroad and collides with a passenger ship (which is, the "boat"). All personnel on both vehicles survive, and take part in Guy's culinary celebration. The cartoon is more implicitly violent, as the train, whose engineer appears to be asleep at the throttle, charges down the ship's smokestack, causing both vehicles to sink to the bottom. While Guy then wades to shore, no one else emerges from either vehicle, so it might be presumed that all hands in both crews drowned.
- Also, in the cartoon – unlike the book where the car falls off the tree and on top of the train, Guy jumps off the car, lands on the caboose of the train and sits inside of the train to wait for dinner at a table inside a passenger car, then later sits in one of the passenger seats while trying to get away from Sam. The car also stays stuck in the tree.
- Also, in the cartoon, instead of staying on top of the passenger car throughout their train voyage which was in the book, Guy just uses a handcar to carry on with his voyage across the railroad until he lands into a smokestack of the passenger ship.
- Additionally, after Sam asks him about eating in the rain, Guy does not say anymore of the following lines from the book after saying "I do not like them, Sam, you see!" Also, on the boat, Guy also does not continue his dialogue from the book after he says "Not in the rain, not on a train..." due to him being interrupted by the train approaching the boat much to his shock.
- One line from the book (on the page showing a wide shot while they are riding the train) where Sam asks Guy "You do not like green eggs and ham?" and Guy shouts "I DO NOT LIKE THEM SAM-I-AM!!!!" is not in the cartoon.
- In the book, the goat was inside the car, but in the cartoon, Sam rode the goat over to Guy after he halted his handcar in front of a railroad signal.
- Additionally in the cartoon, after Guy tells Sam he "would not, could not, with a goat", he then says an extra line he didn't say after that in the book, which is "I will not eat them here or there. I would not eat them anywhere."
- In the book, the boat's windows were white on the inside and were shaped like circles, it has a flagpole on the front of the ship, and the captain was seen steering the boat from the back outside the ship. In the cartoon, the boat was clearly redesigned, the windows were now colored black and look more square-shaped (despite having round edges), the ship now has two lower platforms instead of one, there are two poles (one now behind the middle portion of the ship) added rather in between lower platforms of the ship – which looked more antenna-like and had no flags attached, two smaller smokestacks are added (one on the back of the ship where the captain as well as the ship's steering wheel originally was, and another beside the large smokestack), extra holes are added beneath the three passenger windows, and, in front of the passenger room there appears to be a control room where the captain is supposedly in, even though the captain was never physically seen in the cartoon.
- In the book, while Guy celebrates with Sam about eating green eggs and ham no matter where he goes, he is in the water with everyone else and later heads back up the grass hill with Sam. In the cartoon, after the boat sinks, Guy heads out of the water rather before he manages to try the green eggs and ham, and instead of a grass hill the last location the cartoon ends at is where he ends up on an island, and Sam pops out of a treasure chest (much to Guy's surprise, thinking it's a real treasure inside the chest until otherwise) before telling him "You do not like them, so you say."