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The eleventh series of Thomas & Friends first aired in September 2007 as the last series to air on Nick Jr. in the UK before being moved to Channel 5.

Production

The series was narrated by Michael Angelis in the UK and Michael Brandon in the US. The series is the first to be filmed digitally in 1080i high definition and on a Sony Cybershot HD camera, as well as the last to fully utilize the static resin engine face masks and inanimate human models employed by the show since its inception; the following series would replace both these features with fully-mobile CGI elements. After the episodes aired, the DVD Engines and Escapades was released, bringing the total number of episodes in this series to twenty-six, making it the final series with this number limit of episodes until the seventeenth series.

A yellow overlay was added on all the footage. The Great Discovery would receive the same treatment. According to Simon Spencer, it was to give the show the effect that it was still recorded using film stock. For unknown reasons, various scenes from the first 20 episodes aired were reshot at some point during filming of The Great Discovery. Visual evidence of these original versions are in promotional pictures, which were taken during the original shoot. Five episodes would also have footage from the original shoots featured on the half hour TV airings, being swapped out with the reshot versions in all other releases (Dirty Work, Hector the Horrid, Thomas and the Spaceship, Don't Be Silly, Billy, Hide and Peep), albeit in 4:3 due to the half hour airings never being released in the original 16:9 aspect ratio.

Episodes

(Note: ¹ means that an episode was not released on home media in the US.)

(Note: ² means that an episode was not released on DVD, but it was released on Digital Download.)

(Note: ³ means that an episode was only released on HiT Favorites in the US.)

(Note: means that an episode released on HiT Favorites was also released on Thomas and Friends DVDs.)

(Note: means that an episode was seen in theaters via Thomas & Friends on the Big Screen.)

Screenshot UK title (top)
US title (bottom)
Written by Episode number #
HideAndPeep77 Hide and Peep Simon Spencer #01
Thomas cheats at a game of "hide and peep" with Percy at Brendam Docks.
GordonandtheEngineer40 Gordon and the Engineer
Gordon and the Mechanic
²
Paul Larson #02
Gordon's mistaken identity case almost causes the engines to be stranded and he needs Donald and Douglas' assistance.
ThomasSetsSail88 Thomas Sets Sail ³ ⁵ Sharon Miller #03
It is very windy and Thomas loses control of his sailing boat while he pulls it as a result of not waiting for the engineer to lower the mast.
Emily'sRubbish10 Emily's Rubbish
Emily and the Garbage
⁴ ⁵
Wayne Jackman #04
Emily gets teased by the other engines for working with a new engine named Whiff, but soon learns how useful he is.
DreamOn85 Dream On ² Neil Richards #05
Thomas wants to be faster, shinier and stronger than Spencer.
CoolTruckings19 Cool Truckings Paul Larson #06
A new lorry named Madge almost has a terrible accident in the snow while transporting Duncan to the Transfer Yards.
ThomasandtheSpaceship70 Thomas and the Spaceship ² Sharon Miller #07
Thomas and Percy are certain they have seen a spaceship in the sky when it's really Jeremy.
HectortheHorrid!23 Hector the Horrid! ¹ Simon Spencer #08
An aggressive coal hopper named Hector is rude to Bill, Ben and Rosie, but Thomas learns of his secret fear.
ThomasandtheStoryteller54 Thomas and the Storyteller ² Abi Grant #09
Thomas shows a famous storyteller around all of Sodor, but keeps making favours to help all of his friends.
SkarloeyStormsThrough11 Skarloey Storms Through Neil Richards #10
Skarloey faces all of his worst fears when the Thin Controller orders him to rescue some upset lambs during a thunderstorm.
ThomasAndTheLighthouse88 Thomas and the Lighthouse ³ Abi Grant #11
Thomas neglects his instructions of taking a light bulb carefully to the lighthouse when the engines become excited about a fair with fireworks.
SirHandelInCharge62 Sir Handel in Charge Simon Spencer #12
The Thin Controller is absent, so Sir Handel tells the other narrow gauge engines what to do, with disastrous results.
SmokeAndMirrors73 Smoke and Mirrors ³ ⁵ Neil Richards #13
Thomas confuses some deliveries for a magic show, but the magician puts him in the grand finale after Thomas fixes his mistake.
Henry'sLuckyDay65 Henry's Lucky Day Paul Larson #14
Edward takes Henry's so-called "lucky trucks" and Henry goes looking for them. However, Henry breaks his lucky trucks after finding Edward.
Don'tBeSillyBilly47 Don't be Silly, Billy ¹ ⁵ Sharon Miller #15
A new orange engine named Billy ignores Thomas' advice and, as a result, runs out of coal and water.
Toby'sTriumph99 Toby's Triumph ² Abi Grant #16
Toby is chosen to take Allicia Botti to a concert, but he is worried he will mess up and he does too many times.
ThomasAndTheRunawayCar26 Thomas and the Runaway Car ³ ⁵ Sharon Miller #17
After trying to beat Gordon in a race, a runaway car causes trouble for the other engines, so Thomas tries to catch it.
EdwardandtheMail65 Edward and the Mail ² Paul Larson #18
Edward is chosen to pull the mail, but he does not know how to do the job and is worried to ask the other engines how.
ThomasandtheBigBang32 Thomas and the Big Bang ¹ Abi Grant #19
Thomas plays jokes with the narrow gauge engines at the wharf instead of doing his job.
WashBehindYourBuffers57 Wash Behind Your Buffers Paul Larson #20
Madge tells Skarloey and Rheneas to keep clean for a concert, but she cannot keep clean herself.
ThomasinTrouble(Season11)52 Thomas in Trouble ² Wayne Jackman #21
After being teased by James, Thomas leaves the fitter's yard to pick up a choir before he is fully maintained, which leads to a problem.
DirtyWork(Season11)72 Dirty Work ³ Wayne Jackman #22
James gets ready to be the star of the lights festival at Callan Castle and Emily, Percy and Thomas want to go, too. However, they have not finished their work.
DuncanDoesItAll37 Duncan Does it All Wayne Jackman #23
Duncan does Rusty and Skarloey's jobs for a change for the afternoon, but he causes several muddles during his jobs.
PercyandtheLeftLuggage69 Percy and the Left Luggage
Percy and the Baggage
¹
Abi Grant #24
Percy neglects his more important job of collecting the luggage from the Fat Controller's mother, Dowager Hatt, in favour of his other more fun jobs.
Ding-A-Ling94 Ding-a-Ling Sharon Miller #25
Freddie tries to find a bell for the Thin Controller's new bicycle, but neglects asking James where to find one.
ThomasandtheStinkyCheese59 Thomas and the Stinky Cheese ² Paul Larson #26
Thomas tries to avoid 'Arry, Bert and Diesel while taking some stinky cheese.

Screenshot Title Written by Original UK release date Episode number #
ThomasandtheStoryteller54 Thomas and the Storyteller Abi Grant 3 September 2007 #01
Thomas shows a famous storyteller around all of Sodor, but keeps making favours to help all of his friends.
Emily'sRubbish10 Emily's Rubbish Wayne Jackman 3 September 2007 #02
Emily gets teased by the other engines for working with a new engine named Whiff, but soon learns how useful he is.
DreamOn85 Dream On Neil Richards 4 September 2007 #03
Thomas wants to be faster, shinier and stronger than Spencer.
DirtyWork(Season11)72 Dirty Work Wayne Jackman 4 September 2007 #04
James gets ready to be the star of the lights festival at Callan Castle and Emily, Percy and Thomas want to go, too. However, they have not finished their work.
HectortheHorrid!23 Hector the Horrid! Simon Spencer 5 September 2007 #05
An aggressive coal hopper named Hector is rude to Bill, Ben and Rosie, but Thomas learns of his secret fear.
GordonandtheEngineer40 Gordon and the Engineer Paul Larson 5 September 2007 #06
Gordon's case of mistaken identity almost causes the engines to be stranded, and he needs Donald and Douglas' assistance.
ThomasandtheSpaceship70 Thomas and the Spaceship Sharon Miller 6 September 2007 #07
Thomas and Percy are certain they have seen a spaceship in the sky when it's really Jeremy.
Henry'sLuckyDay65 Henry's Lucky Day Paul Larson 6 September 2007 #08
Edward takes Henry's so-called "lucky trucks" and Henry goes looking for them. However, Henry breaks his lucky trucks after finding Edward.
ThomasAndTheLighthouse88 Thomas and the Lighthouse Abi Grant 7 September 2007 #09
Thomas neglects his instructions of taking a light bulb carefully to the lighthouse when the engines become excited about a fair with fireworks.
ThomasandtheBigBang32 Thomas and the Big Bang Abi Grant 7 September 2007 #10
Thomas plays jokes with the narrow gauge engines at the wharf instead of doing his job.
SmokeAndMirrors73 Smoke and Mirrors Neil Richards 8 September 2007 #11
Thomas confuses some deliveries for a magic show, but the magician puts him in the grand finale after Thomas fixes his mistake.
ThomasSetsSail88 Thomas Sets Sail Sharon Miller 8 September 2007 #12
It is very windy and Thomas loses control of his sailing boat while he pulls it as a result of not waiting for the engineer to lower the mast.
Don'tBeSillyBilly47 Don't be Silly, Billy Sharon Miller 9 September 2007 #13
A new orange engine named Billy ignores Thomas' advice and, as a result, runs out of coal and water.
EdwardandtheMail65 Edward and the Mail Paul Larson 9 September 2007 #14
Edward is chosen to pull the mail, but he does not know how to do the job and is worried to ask the other engines how.
HideAndPeep77 Hide and Peep Simon Spencer 10 September 2007 #15
Thomas cheats at a game of "hide and peep" with Percy at Brendam Docks.
Toby'sTriumph99 Toby's Triumph Abi Grant 10 September 2007 #16
Toby is chosen to take Allicia Botti to a concert, but he is worried he will mess up and he does too many times.
ThomasAndTheRunawayCar26 Thomas and the Runaway Car Sharon Miller 11 September 2007 #17
After trying to beat Gordon in a race, a runaway car causes trouble for the other engines, so Thomas tries to catch it.
ThomasinTrouble(Season11)52 Thomas in Trouble Wayne Jackman 11 September 2007 #18
After being teased by James, Thomas leaves the fitter's yard to pick up a choir before he is fully maintained, which leads to a problem.
ThomasandtheStinkyCheese59 Thomas and the Stinky Cheese Paul Larson 12 September 2007 #19
Thomas tries to avoid 'Arry, Bert and Diesel while taking some stinky cheese.
PercyandtheLeftLuggage69 Percy and the Left Luggage Abi Grant 12 September 2007 #20
Percy neglects his more important job of collecting the luggage from the Fat Controller's mother, Dowager Hatt, in favour of his other more fun jobs.
SkarloeyStormsThrough11 Skarloey Storms Through Neil Richards 9 January 2008 #21
Skarloey faces all of his worst fears when the Thin Controller orders him to rescue some upset lambs during a thunderstorm.
CoolTruckings19 Cool Truckings Paul Larson 10 January 2008 #22
A new lorry named Madge almost has a terrible accident in the snow while transporting Duncan to the Transfer Yards.
WashBehindYourBuffers57 Wash Behind Your Buffers Paul Larson 11 January 2008 #23
Madge tells Skarloey and Rheneas to keep clean for a concert, but she cannot keep clean herself.
DuncanDoesItAll37 Duncan Does it All Wayne Jackman 13 January 2008 #24
Duncan does Rusty and Skarloey's jobs for a change for the afternoon, but he causes several muddles during his jobs.
SirHandelInCharge62 Sir Handel in Charge Simon Spencer 14 January 2008 #25
The Thin Controller is absent, so Sir Handel tells the other narrow gauge engines what to do, with disastrous results.
Ding-A-Ling94 Ding-a-Ling Sharon Miller 15 January 2008 #26
Freddie tries to find a bell for the Thin Controller's new bicycle, but neglects asking James where to find one.

Screenshot Title Written by Original US release date Episode number #
ThomasandtheStoryteller54 Thomas and the Storyteller ² Abi Grant 9 September 2007 #01
Thomas shows a famous storyteller around all of Sodor, but keeps making favors to help all of his friends.
Emily'sRubbish10 Emily and the Garbage Wayne Jackman 9 September 2007 #02
Emily gets teased by the other engines for working with a new engine named Whiff, but soon learns how useful he is.
DreamOn85 Dream On ² Neil Richards 16 September 2007 #03
Thomas wants to be faster, shinier and stronger than Spencer.
DirtyWork(Season11)72 Dirty Work ³ Wayne Jackman 16 September 2007 #04
James gets ready to be the star of the lights festival at Callan Castle and Emily, Percy and Thomas want to go, too. However, they have not finished their work.
HectortheHorrid!23 Hector the Horrid! ¹ Simon Spencer 23 September 2007 #05
An aggressive coal hopper named Hector is rude to Bill, Ben and Rosie, but Thomas learns of his secret fear.
GordonandtheEngineer40 Gordon and the Mechanic ² Paul Larson 23 September 2007 #06
Gordon's case of mistaken identity almost causes the engines to be stranded, and he needs Donald and Douglas' assistance.
ThomasandtheSpaceship70 Thomas and the Spaceship ² Sharon Miller 30 September 2007 #07
Thomas and Percy are certain they have seen a spaceship in the sky when it's really Jeremy.
Henry'sLuckyDay65 Henry's Lucky Day Paul Larson 30 September 2007 #08
Edward takes Henry's so-called "lucky trucks" and Henry goes looking for them. However, Henry breaks his lucky trucks after finding Edward.
ThomasAndTheLighthouse88 Thomas and the Lighthouse ³ Abi Grant 7 October 2007 #09
Thomas neglects his instructions of taking a light bulb carefully to the lighthouse when the engines become excited about a fair with fireworks.
ThomasandtheBigBang32 Thomas and the Big Bang ¹ Abi Grant 7 October 2007 #10
Thomas plays jokes with the narrow gauge engines at the wharf instead of doing his job.
SmokeAndMirrors73 Smoke and Mirrors ³ Neil Richards 14 October 2007 #11
Thomas confuses some deliveries for a magic show, but the magician puts him in the grand finale after Thomas fixes his mistake.
ThomasSetsSail88 Thomas Sets Sail ³ Sharon Miller 14 October 2007 #12
It is very windy and Thomas loses control of his sailing boat while he pulls it as a result of not waiting for the engineer to lower the mast.
Don'tBeSillyBilly47 Don't be Silly, Billy ¹ Sharon Miller 21 October 2007 #13
A new orange engine named Billy ignores Thomas' advice and, as a result, runs out of coal and water.
EdwardandtheMail65 Edward and the Mail ² Paul Larson 21 October 2007 #14
Edward is chosen to pull the mail, but he does not know how to do the job and is worried to ask the other engines how.
HideAndPeep77 Hide and Peep Simon Spencer 28 October 2007 #15
Thomas cheats at a game of "hide and peep" with Percy at Brendam Docks.
Toby'sTriumph99 Toby's Triumph ² Abi Grant 28 October 2007 #16
Toby is chosen to take Allicia Botti to a concert, but he is worried he will mess up and he does too many times.
ThomasAndTheRunawayCar26 Thomas and the Runaway Car ³ Sharon Miller 4 November 2007 #17
After trying to beat Gordon in a race, a runaway car causes trouble for the other engines, so Thomas tries to catch it.
ThomasinTrouble(Season11)52 Thomas in Trouble ² Wayne Jackman 4 November 2007 #18
After being teased by James, Thomas leaves the fitter's yard to pick up a choir before he is fully maintained, which leads to a problem.
ThomasandtheStinkyCheese59 Thomas and the Stinky Cheese ² Paul Larson 11 November 2007 #19
Thomas tries to avoid 'Arry, Bert and Diesel while taking some stinky cheese.
PercyandtheLeftLuggage69 Percy and the Baggage ¹ Abi Grant 11 November 2007 #20
Percy neglects his more important job of collecting the baggage from Sir Topham Hatt's mother in favor of his other more fun jobs.
Ding-A-Ling94 Ding-a-Ling Sharon Miller 14 September 2008 #21
Freddie tries to find a bell for Mr. Percival's new bicycle, but neglects asking James where to find one.
CoolTruckings19 Cool Truckings Paul Larson 14 September 2008 #22
A new truck named Madge almost has a terrible accident in the snow while transporting Duncan to the Transfer Yards.
SkarloeyStormsThrough11 Skarloey Storms Through Neil Richards 21 September 2008 #23
Skarloey faces all of his worst fears when Mr. Percival orders him to rescue some upset lambs during a thunderstorm.
DuncanDoesItAll37 Duncan Does it All Wayne Jackman 21 September 2008 #24
Duncan does Rusty and Skarloey's jobs for a change for the afternoon, but he causes several muddles during his jobs.
SirHandelInCharge62 Sir Handel in Charge Simon Spencer 28 September 2008 #25
Mr. Percival is absent, so Sir Handel tells the other narrow gauge engines what to do, with disastrous results.
WashBehindYourBuffers57 Wash Behind Your Buffers Paul Larson 28 September 2008 #26
Madge tells Skarloey and Rheneas to keep clean for a concert, but she cannot keep clean herself.

Screenshot Title Written by Original JPN release date Episode number #
HideAndPeep77 みなとのかくれんぼ (Minato Hide and Seek) Simon Spencer 8 April 2009 #01
Thomas cheats at a game of "hide and peep" with Percy at Brendam Docks.
GordonandtheEngineer40 ゴードンとせんろのしゅうり (Gordon and Senro no Shuuri) Paul Larson 15 April 2009 #02
Gordon's case of mistaken identity almost causes the engines to be stranded, and he needs Donald and Douglas' assistance.
ThomasSetsSail88 トーマスとヨット (Thomas and Yacht) Sharon Miller 22 April 2009 #03
It is very windy and Thomas loses control of his sailing boat while he pulls it as a result of not waiting for the engineer to lower the mast.
Emily'sRubbish10 エミリーとゴミあつめ (Emily and the Garbage Collector) Wayne Jackman 29 April 2009 #04
Emily gets teased by the other engines for working with a new engine named Whiff, but soon learns how useful he is.
DreamOn85 トーマスのあこがれ (Thomas' Admiration) Neil Richards 6 May 2009 #05
Thomas wants to be faster, shinier and stronger than Spencer.
CoolTruckings19 マージのゆきあそび (Marge's Snow Play) Paul Larson 13 May 2009 #06
A new lorry named Madge almost has a terrible accident in the snow while transporting Duncan to the Transfer Yards.
ThomasandtheSpaceship70 トーマスとうちゅうせん (Thomas) Sharon Miller 20 May 2009 #07
Thomas and Percy are certain they have seen a spaceship in the sky when it's really Jeremy.
HectortheHorrid!23 ヘクターってこわい (Hector is Scary) Simon Spencer 27 May 2009 #08
An aggressive coal hopper named Hector is rude to Bill, Ben and Rosie, but Thomas learns of his secret fear.
ThomasandtheStoryteller54 トーマスとしょうせつか (Thomas and Shosetsuka) Abi Grant 3 June 2009 #09
Thomas shows a famous storyteller around all of Sodor, but keeps making favors to help all of his friends.
SkarloeyStormsThrough11 あらしのなかのスカーロイ (Skarloey in the Storm) Neil Richards 10 June 2009 #10
Skarloey faces all of his worst fears when Mr. Percival orders him to rescue some upset lambs during a thunderstorm.
ThomasAndTheLighthouse88 トーマスととうだいのあかり (Thomas and Todai no Akari) Abi Grant 17 June 2009 #11
Thomas neglects his instructions of taking a light bulb carefully to the lighthouse when the engines become excited about a fair with fireworks.
SirHandelInCharge62 サー・ハンデルはせきにんしゃ (Sir Handel in a Cough) Simon Spencer 24 June 2009 #12
Mr. Percival is absent, so Sir Handel tells the other narrow gauge engines what to do, with disastrous results.
SmokeAndMirrors73 トーマスとてじな (Thomas and Thomas) Neil Richards 1 July 2009 #13
Thomas confuses some deliveries for a magic show, but the magician puts him in the grand finale after Thomas fixes his mistake.
Don'tBeSillyBilly47 なまいきなビリー (Naive Billy) Sharon Miller 15 July 2009 #14
A new orange engine named Billy ignores Thomas' advice and, as a result, runs out of coal and water.
Henry'sLuckyDay65 ヘンリーのこううんなかしゃ (Henry's College) Paul Larson 18 July 2009 #15
Edward takes Henry's so-called "lucky trucks" and Henry goes looking for them. However, Henry breaks his lucky trucks after finding Edward.
Toby'sTriumph99 トビーとゆうめいなかしゅ (Toby and Yuumei Nakashu) Abi Grant 22 July 2009 #16
Toby is chosen to take Allicia Botti to a concert, but he is worried he will mess up and he does too many times.
ThomasAndTheRunawayCar26 トーマスとにげるくるま (Thomas and Escape Car) Sharon Miller 29 July 2009 #17
After trying to beat Gordon in a race, a runaway car causes trouble for the other engines, so Thomas tries to catch it.
EdwardandtheMail65 エドワードのゆうびんはいたつ (Edward's Post Office) Paul Larson 5 August 2009 #18
Edward is chosen to pull the mail, but he does not know how to do the job and is worried to ask the other engines how.
ThomasandtheBigBang32 トーマスのドッキリ!!さくせん (Surprise of Thomas!!) Abi Grant 12 August 2009 #19
Thomas plays jokes with the narrow gauge engines at the wharf instead of doing his job.
WashBehindYourBuffers57 ピカピカのマージ (Shiny Merge) Paul Larson 19 August 2009 #20
Madge tells Skarloey and Rheneas to keep clean for a concert, but she cannot keep clean herself.
ThomasinTrouble(Season11)52 トーマスのだいピンチ (Thomas Big Pinch) Wayne Jackman 26 August 2009 #21
After being teased by James, Thomas leaves the fitter's yard to pick up a choir before he is fully maintained, which leads to a problem.
PercyandtheLeftLuggage69 パーシーとにもつ (Motsu with Percy) Abi Grant 2 September 2009 #22
Percy neglects his more important job of collecting the baggage from Sir Topham Hatt's mother, Dowager Hatt, in favor of his other more fun jobs.
DirtyWork(Season11)72 たいせつなこと (Important Thing) Wayne Jackman 9 September 2009 #23
James gets ready to be the star of the lights festival at Callan Castle and Emily, Percy and Thomas want to go, too. However, they have not finished their work.
DuncanDoesItAll37 ダンカンにおまかせ (Leave it to Duncan) Wayne Jackman 16 September 2009 #24
Duncan does Rusty and Skarloey's jobs for a change for the afternoon, but he causes several muddles during his jobs.
Ding-A-Ling94 じてんしゃのベル (Trainee's Bell) Sharon Miller 23 September 2009 #25
Freddie tries to find a bell for Mr. Percival's new bicycle, but neglects asking James where to find one.
ThomasandtheStinkyCheese59 トーマスとくさいチーズ (Thomas Spicy Cheese) Paul Larson 30 September 2009 #26
Thomas tries to avoid 'Arry, Bert and Diesel while taking some stinky cheese.

Songs

Screenshot Title Composers Original release date
EngineRollCall(Season11)1 Engine Roll Call Ed Welch 3rd September 2007 (UK)
They're two, they're four, they're six, they're eight,
Shunting trucks and hauling freight...
TheGreatDiscovery514 The Narrow Gauge Engines Ed Welch 22nd October 2007 (UK; DVD)
High up in the Sodor Hills
Among the lakes and trees...

Characters

Characters Introduced

Locations

Half Hour Format

When Series 11 was airing on Nick Jr. and Nick Jr. 2. in the UK and Ireland and PBS Kids in the US and Treehouse TV in Canada, each broadcast featured two episodes from the eleventh series, a segment called "Fun Times with our Friends" dedicated to one of the engines on Sodor and past animated learning segments and songs from the eighth, ninth and tenth series.

New Friends

Hopes and Dreams

The Unexpected

Believing

Sights and Sounds

Being on Time

Experience

Fun and Games

Pushing and Pulling

Directions

Variety

Doing Your Best

Team Work

Trivia

  • This was the last series of several things:
    • Sharon Miller's last series as script editor.
    • The last series to exclusively use resin faces for live-action models.
    • The last series to be in full live-action models version.
    • The last series to use Henry and Gordon's original plastic models and Thomas' resin model.
    • The last series until the seventeenth series where Bill and Ben appear in more than one episode.
    • The last series shot in 50fps (converted to 60fps for NTSC regions) or 25fps interlaced.
    • The last series until the seventeenth to include 26 episodes.
    • The last series during George Carlin's lifetime.
    • The last series to premiere on Nick Jr. in the UK.
    • The last series until the twenty-third series to not have a special released before it.
    • The last series in Germany to not have any voice actors aside from the narrator, as Christian Stark voiced all characters in twelfth series except for the narrator.
    • The last series to play general Engine Roll Call song until the fourteenth series in Sweden.
    • The last series released on DVD until the thirteenth series in Nordic countries.
    • The last series that not have two dubs until the thirteenth series in South Korea.
    • The last series aired by Polsat JimJam until the sixteenth series in Poland.
    • The last appearance of Spencer in the model series.
    • The last series where all the characters are voiced by Roberto Cuadrado in Spain. However, Cuadrado still voiced Sir Topham Hatt starting from the thirteenth series.
    • The last series to originally be presented by Connecticut Public Television on PBS Kids airings. WNET presented the series from the next season until the series stopped airing on PBS Kids. However, later PBS reruns of this season do plaster the 2004 CPTV logo with the 2006 WNET logo.
  • This was the first series of several things:
    • Christopher Skala's first series as executive producer.
    • The first series to use the Engine Roll Call as the opening title music.
    • The first series to feature the block version of the Hit Entertainment logo at the end of the episodes.
    • The first series where Trevor, Harold and George do not appear since their introductions in the second and fourth series respectively, although Harold appears only in a deleted scene from Wash Behind Your Buffers and he and Trevor appear in the Island of Sodor opening sequence.
    • The first series to have the funnel change on the Engine Roll Call ending, as well as the series' music videos.
    • The first series where CGI Learning Segments are exclusively used in the Half Hour TV blocks.
    • The first series since the sixth series where Mavis speaks in more than one episode.
    • The first series not fully released on home video since the third series in South Korea.
    • The first series not released on DVD by Adongmoonhak in South Korea.
    • The first series aired by Kids 1 in South Korea.
    • The first series recorded and mixed in Korean by STORM Studios in South Korea.
    • The first series narrated by Yu Dong-kyun in South Korea.
    • The first series directed by Shim Sang-bo and Choi Ok-joo in South Korea.
    • The first series translated by Seo Seung-hee in South Korea.
    • The first series video edited by Shin Seon in South Korea.
    • The first series that not released completely on DVD since the fourth series in South Korea.
    • The first series that not aired by EBS since the fourth series in South Korea.
    • The first series to use voice actors, as well as having Muhammad Nur to dub the series for the Indonesian dub.
    • The first series to have Bertie have a fully working eye mechanism rather than an animated one.
    • The first series where the episodes' title cards are read aloud by the narrator in Spain.
    • The first series since the third series to have only one song.
  • When this series aired on PBS Kids Sprout (before it was rebranded as Universal Kids), several episodes used the intros and credits from the eight series, ninth series and tenth series, as well as the ninth and tenth series Engine Roll Call. This also applies to several episodes that were released on several US DVDs.
  • This marks the only series with two things:
    • The only series to have episodes written by Neil Richards.
    • The only series to feature the 2007 HiT Entertainment logo at the end of the episodes.
  • This series was never shown on Norwegian television. Instead, it was released directly to DVD.
  • The US dub of the episodes Hector the Horrid, Thomas and the Big Bang, Don't be Silly, Billy and Percy and the Baggage were only shown on television and currently weren't released on home video in any form yet. Thomas and the Storyteller, Dream On, Gordon and the Engineer, Thomas and the Spaceship, Edward and the Mail, Toby's Triumph, Thomas in Trouble and Thomas and the Stinky Cheese were on the digital download release, Fun on the Rails in 2013, but it was removed in 2021.
  • This was originally going to be the last series narrated by Michael Angelis in the UK and Michael Brandon in the US. The Great Discovery was narrated by Pierce Brosnan and he was going to narrate the twelfth series in the UK and US, but late into production, producer Simon Spencer decided he didn't feel Pierce was suited for non feature length productions, which meant that Michael Angelis and Michael Brandon came back.
  • This series premiered after the special, The Great Discovery in South Korea.
  • The Korean DVDs credit Michael Angelis as the narrator, even though they were redubbed in their respective language.
  • This series later re-aired on the Milkshake! block from 22nd October-16th November 2007.
  • Throughout this series, Michael Brandon gave Henry a Southern accent in the US dub.
  • In the Indonesian dub, Rheneas and Madge swapped genders.
  • Throughout this series, the word "shunting" was not translated in Korean.
  • This series coincided with the release of the 41st book of The Railway Series, Thomas and Victoria on 3rd September 2007.
  • Whiff is the only new character from this series to be brought to CGI.
  • In production, Callan Castle was built on the same set as Knapford.

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